<s>[INST] 57 yrs old great health female, single, divorced. Very fit & health consciouse. Do not drink or smoke. Currently have no health insurance (working on it) as a consultant. Been experiencing bad thumping, heating beating every night from 7 pm until next morning. Sometimes it starts earlier and never stops. Gets worse around 11 pm so unable to sleep as so loud. When I do manage to get a little sleep, it wakes me up with same thing at 4 am and cannot get back to sleep. It also happens during the day. I have no anxiety, and min stress, and highly allergic to medications. Was taking 5mg claritin but too strong. I also have bad ear infections, but unalble to take steriods or antibodicts. This has been ongoing for a year and getting worse and happening every day now. I have gone thru menopause at 53, but possibly still part of it. The only thing I can take is Childrens Benedryl 1 tsp. Sometimes it is skips beats. I suspect food allergies; however, even if I eat nothing, still does it. Worse after eating within a 2 hr period. I have low blood pressure; however high cholestrol as very genic in family. The feeling of a lot of adrenaline pumping, even if not working out. A lot of pressure in the chest as well. I tried bioidential hormones but could not tell any difference. Not taking anything now except B-Complex Sublingual Liquid once a day and the Benedryl if having an allergic reaction. [/INST] Hello!Welcome to Ask a Doctor service!I passed carefully through your question and would explain that your symptoms could be related to gastro-esophageal reflux or a metabolic disorder. A cardiac arrhythmia can not be excluded either. Coming to this point, I would recommend consulting with your attending physician for a physical exam and some tests: - a resting ECG and a cardiac ultrasound- complete blood count for anemia- blood electrolytes for possible imbalance- thyroid hormone levels for thyroid gland dysfunction. An ambulatory 24-48 hours ECG monitoring would help investigate for possible cardiac arrhythmia. In the meantime, I recommend avoiding caffeine intake and eat in small portions, frequently during the day, in order to avoid large meals. Hope to have been helpful!I remain at your disposal for any further questions whenever you need!Kind regards, Dr. Ilir Sharka, Cardiologist </s>