I’m 18 so not exactly in the age range where this would be w problem. When I lost my virginity a couple of months ago, when I had sex I often found it difficult to maintain my erection and couldn’t climax but I’m not sure if this was just due to anxiety. I have depression and anxiety and am on sertraline. I have night sweats. I often feel fatigued in the day. So I can’t tell if this is because of low testosterone or my medication/condition?