What Causes Excessive Sweating?

Anytime there is a change in the external temperature or I exert myself in even the slightest way, I begin to sweat from my head profusely. I even sweat just after stepping out of a shower. This happens all year long. Going from my home into a hot car is a trigger. Shoveling snow or folding laundry brings it on. Trying clothes on in a department store is out of the question because I will be drenched and appear to have just stepped out of a shower. I have been told by my gynecologist that this is not menopause, but something physiological. When I discuss it with docs, they say it is my meds, however I ve been on the same meds for years and this sweating is relatively new. (Two years. ) I do have Hashimoto s (I take meds to regulate this), but my endocrinologist says that is not the cause of my sweating. Does this sound familiar? What type of doc should I see? I know there are people with far more serious health issues, but I find myself staying home, refusing invitations to go out, isolating myself, and not living my life. Any help or insight would be greatly appreciated.