Panic Attacks During Cancer Treatment

This page is for people having panic attacks during cancer treatment. It starts with the warning signs that need a doctor first, then explains what panic is, how to get through an attack, and which treatments help.

A panic attack and a serious medical emergency can feel exactly the same from the inside. Racing heart. Air that will not go deep enough. Chest pain. Sweating. Doom.

During cancer treatment, that overlap is dangerous. New chest pain or new breathlessness needs a medical assessment first. Do not decide for yourself that it is panic.

• Call 911 or go to an emergency department if you have chest pain, difficulty breathing, a cough that brings up blood, or a heartbeat that is fast or irregular — especially if the chest pain is worse when you breathe in or cough. Those are the signs of a blood clot in the lung. Do not drive yourself.
• Phone your oncology team right away, at any hour, if your temperature is 100.4°F (38°C) or higher and you are on chemotherapy. If you cannot reach them quickly, go to an emergency department and say at the desk that you are on chemotherapy. CDC says to call your doctor immediately, because during chemotherapy a fever may be the only sign of a serious infection. Do not wait until morning.
• Call your care team right away, at any hour, if you had an episode of chest pain or breathlessness that has now passed, or one leg is swollen, painful, warm, or discolored. CDC says to alert your cancer doctor as soon as possible about signs of a clot in the leg (CDC). If the chest pain or breathlessness comes back, call 911.
• Call your care team soon, within a day or two, if the attacks keep coming, you are avoiding scans or appointments because of them, or you are rating your distress at 4 or higher out of 10.
• Call, text or chat 988 if you are having thoughts of suicide or are in emotional crisis. It is free and open 24/7.

This is not caution for its own sake. The Centers for Disease Control and Prevention states that having cancer, and some of its treatments, increases the risk of a blood clot. Hospital stays, surgery, chemotherapy, hormone therapy, and catheters all raise it. A clot that travels to the lungs is called a pulmonary embolism. CDC lists its signs as difficulty breathing, chest pain that gets worse with a deep breath or a cough, coughing, coughing up blood, and a fast or irregular heartbeat.

Read that list again. Many of the same signs happen in panic.

The National Cancer Institute makes the same point about anxiety generally. It notes that anxiety may be a warning sign of a change in metabolism such as low blood sugar, a heart attack, a severe infection, pneumonia, or a blood clot in the lung.

Nobody at the clinic will think less of you for calling and being told it was anxiety. That is a good outcome, not a wasted trip.

A panic attack is a sudden wave of intense fear with strong physical symptoms. NCI describes shortness of breath, a fast heartbeat, sweating, and nausea. NCI says it usually lasts 10 to 20 minutes, but the fear of having another one can keep the discomfort going longer. NIMH says attacks can last from a few minutes to an hour or sometimes longer.

NIMH says panic attacks themselves are not life-threatening, and the physical symptoms usually pass with time. That is why the medical causes above need to be ruled out first.

Anxiety in cancer is common. NCI reports that almost half of people with cancer feel some anxiety, and about a quarter feel a great deal of it.

Before settling on panic, it is worth ruling out the treatable causes NCI lists.

• Medicines. Corticosteroids, thyroxine, bronchodilators, and antihistamines can all cause restlessness, agitation, or anxiety.
• Withdrawal. Stopping alcohol, nicotine, opioids, or antidepressants can cause agitation or anxiety.
• Body chemistry and illness. Sepsis, low blood oxygen, heart failure, and electrolyte imbalance all produce anxious symptoms.
• Certain tumors. NCI notes that tumors of the adrenal gland, pituitary gland, pancreas, or thyroid can cause anxiety and panic attacks.
• Pain. NCI puts it directly: people with uncontrolled pain feel anxious, and anxiety can increase pain.

Bring your full medicine list, including anything you were given for nausea, and anything you have stopped or run out of.

Only once your team has assessed you and agreed it is panic, some people find these help in the moment.

• Slow your breathing. NIMH notes that breathing training and relaxation exercises are often part of treatment for panic.
• Name it. Tell yourself, "This is panic, and it will pass."
• Notice the room. Name things you can see, touch, and hear. It gives your attention somewhere else to go.

Ask your care team or a mental health provider which approaches suit you. If a new or different symptom appears, treat it as new and get it checked.

NCI lists several treatments for anxiety in cancer:

• Cognitive behavior therapy. This teaches you to catch and change the thoughts that fuel the alarm.
• Relaxation training, including hypnosis, meditation, guided imagery, and biofeedback.
• Counseling, one-to-one or in a group.
• Medicine. Anti-anxiety medicines can be used alone or with therapy, and NCI notes that studies show antidepressants are useful for anxiety disorders.

NCI adds an important sequencing point: people having trouble adjusting to cancer should try counseling before medicine.

Ask your cancer center whether it has psycho-oncology, meaning mental health care built around cancer. Ask the social worker too.

Many people find panic is not random. It arrives in the scanner, in the waiting room, or on the drive in.

NCI describes how this happens. Neutral things such as smells, sounds, and sights become linked to a distressing experience, and later set off the same reaction on their own. For people with earlier trauma, being inside an MRI or CT scanner can restart older symptoms.

That is treatable too, and it is worth naming to the team. Options may include a different appointment time, a talk-through of the scan beforehand, someone with you, or medicine before the scan.

Cancer centers screen for distress, often with a simple 0 to 10 rating. NCI's clinician summary says a score of 4 or higher should prompt a talk with the oncology team about what support would help.

If you are asked, answer honestly. If nobody asks, say it anyway. Useful ways to open:

• "I had an episode of chest pain and breathlessness on Tuesday. I need it checked, and I also want to talk about anxiety."
• "I have had four of these in two weeks. What should I do when one starts?"
• "The scanner is the trigger. Can we plan the next one differently?"

Keep a short log: when it started, how long it lasted, what you felt, what you had taken, and what helped. It turns a vague complaint into something a clinician can act on.

• Adjustment to Cancer: Anxiety and Distress (PDQ) — National Cancer Institute
• Adjustment to Cancer: Anxiety and Distress (PDQ), Health Professional Version — National Cancer Institute
• Understanding Your Risk for Blood Clots with Cancer — Centers for Disease Control and Prevention
• Cancer-Related Post-Traumatic Stress (PDQ) — National Cancer Institute
• Infections and Neutropenia During Cancer Treatment — National Cancer Institute
• Watch Out for Fever — Centers for Disease Control and Prevention
• Panic Disorder: When Fear Overwhelms — National Institute of Mental Health
• 988 Suicide & Crisis Lifeline