<s>[INST] if you can t sleep and don t eat enough food and you have a sharp pain in your chest and your heart hurts. what do you think would be called. it happened to my friend and her doctor said its stress and she thinks it could be cancer. Do any one of you doctors maybe have an idea what might be the problem.? [/INST] Hello thank you for trusting ChatDoctorDear not eating and stress both may aggravate stomach acid production which may cause ulcers in stomach and also cause acid reflex lead to chest pain and burning.stress/anxiety cause release if hormones may lead palpitations and chest tightness and pain. Panic attacks may also present like chest tightness and palpitations. Use tab.pantoprazole before breakfast, and she may need anxiolytic. Please consult your doctor he will examine and treat the case. I think I answered to your question if you have more questions feel free to ask. </s>