I'm have been very tired and have no energy, sex drive, ambition. After light work out side. I look like I just got out of shower. My shirt is soaked in swet. About two month ago, I stopped taking muscle building pills I bought at Walmart to help me in gym. I was full of energy then. Question- what is wrong with me? Is it aging or something else. I'm 45 years old. Lost my job two months ago.