70 yr old female, excessive, extreme head neck sweats?

do take #of meds, have atrial fib. new drug cumiden. doctors think i am nuts and all tests return normal, even thyroid. weight is ok. have asthma which has developed since going off drug Cozaar.
sweats will occur any time of day and night and weather has no effect whether hot or cold. I can start to put makeup on and they start. When doing public speaking, they start. there is no rhyme or reason as to when or where they occur.