OK.. here we go.. 42yrs Male.. used to be Very Active. sports, wo...

OK.. here we go.. 42yrs Male.. used to be Very Active. sports, work , INTIMACY etc... since my surgery everything changed... i feel tired most of the time.. i don't think my memory has suffered.. (i think).. I have gain lot of weight (maybe because i quit smoking?) anyway.. MY Main Concerns are.... why i am tired all the time?.. why i gained so much weight. and Why i went from having sex almost every day to maybe once a month? does anybody experienced the same side effects...??? I asked my doctor and he told me that it could be stress related.