<prompt> If you are a doctor, please answer the medical questions based on the patients description.I am constantly hot and then chilled, my hands are cold, I get clammy, very uncomfortable. I do no sweat, heat stays inside my body, at times my forhead aches. I take 40M blood pressure pills, right now my bP is 16383 Something is wrong. I called my Doc. he says I am OK??  <response>: Hello, Pheochromocytoma is a possibility, in view of fluctuating BP and other somatic symptoms. Alternatively, you may be having paroxysmal hypertension without obvious provocative factors repressed emotional trauma causing condition called pseudopheochromocytoma. You may go for plasma levels of free metanephrines as initial test. Thyroid function test Free T3, Free T4 TSH also wont be out of place. Hope I have answered your query. Let me know if I can assist you further. Take care Chat Doctor. 