<s>[INST] I am 51 years old, and have become intolerant of heat.  I perspire very easily, but mostly in the coccyx area.  I will literally become dripping wet, looking as though I've wet my pants, which as you can imagine is extremely uncomfortable and embarrassing.  I am 130 pounds, 5'5", have been dealing with a strange fatigue and pain in my upper abdomen that radiates to my back.  I am also chronically thirsty. [/INST] Hi there..Thanks for writing in.You haven' t mentioned  if you are a male/ female.If female, then menopausal period might explain the cause of your symptoms.Other possibilities I can think of are Thyroid disorders, Diabetes, which can also present with increased sweating, thirst, fatigue. To rule out these medical conditions get a TSH, FBS and PPBS done.Acidity related symptoms are also possible with upper abdominal pain radiating to the back. If the pain is on the right upper abdomen radiating to the back, gall stones might be the cause. Get an ultrasound abdomen done to rule out gall stones and other pathologies.Hope this helps.Regards,Dr. Divya Kuttikrishnan </s>