So I have been excessively been sweating for about 7 years and I am 20!! I have been to the doctor and they checked my thyroid and said that it was fine!! Within the last 6 month I noticed it stops sometimes a week before I start my period!! The no sweating, which is pretty much heaven on earth as goofy as that sounds, last about 10 days at the most!! End of period, which is usually 5 days, I sadly start sweating excessively again!! A typical crazy sweating day consist of armpits drenched, cold sweaty hands, and sometimes feet!!! I thought of hyperhidrosis, but it stops now and then like I said!! So wouldn't that make it a hormonal problem but not thyroid??!!! Please help it drives me crazy!! Thanks so much for your time!! Peace Out!!!