Glad you mentioned you're a guy -- you list yourself as a female in your profile. So if you're a guy, they're not hot flashes. I don't see how not going to the gym is going to help your anxiety -- exercise helps relax you and releases feel good chemicals. Some medications cause sweating -- some antidepressants do this. Anxiety can cause this. Menopause can cause this, but you're a guy. If you believe your doctors have done a good job eliminating physiological causes, that leaves you in ignorance, but maybe they haven't searched everything they can. Sometimes, if you've been on a medication for a long enough time even if you stop it the side effects can last. The body changes permanently. And if your daily life is all about health anxiety, you are feeling stressed, so have you ever seen a therapist to see if you can learn to reduce this kind of thinking?
I forgot to mention that im a guy