I'm 48, male, and no relationship. Up until recently if I didn't have sex in some way on a regular basis then I would feel horny, frustrated, etc.

In the last several months I have noticed that I really don't have a sex drive at all anymore. However, I have noticed that when I don't have sex on schedule I gradually start feeling extremely tired and discouraged. I'm always struggling with depression, so it's hard to tell what is making me feel so tired.

Anyway, sometimes when it does occur to me that I haven't had sex for a longer than normal interval and correct the situation then I feel normal again. It's hard to make myself have sex when I'm so tired and burned-out and feel like it's a chore, but it does seem to be important.

Of course sex is very different depending on your age and circumstances. I just wanted to mention this in case it might help somebody else. I honestly don't have any sex drive anymore, so it's a different problem for me than it has ever been in the past.

Also, I don't take antidepressants, so that isn't a factor. I know most people take antidepressants and those often reduce libido.