For the past couple of days i have been unable to get a erection with my girlfriend who i have had a amazing sex life with for the past two years. My testicles also seen extremely tight, and i have a slight pain in my right testicle that comes and goes. The rest of my symptoms are probably brought on by my own mind running in a million directions, I have no appettite, when i try to eat i feel sick to my stomach. I have insomnia, when i try to sleep i toss and turn constantly, i have indegetion constantly, probably form the lack of eating. I feel constantly thirsty and dehydrated. I feel detached from the world like nothing intrests me at all including sex which i once loved, so no sex drive. I was wondering because i read a article on the internet, I also smoke alot of marijuana, over gthe past few years, and like i said i have been having sex on a constant basis for the past two years over 6 times a week on average i would say about ten. In the article i read it stated that to much ejaculation and consumation of marijuana at the same time can cause a chemical inbalance in the brain and slow down the production of testosterone by the testicles. I was wondering if this is true and if it is possibly why i feel so down for the past couple of days bacause of as lack of testosterone in my body why i feel like i have no sex drive. Or could it be a form of depression, does manic depression run geneticly, because my granfather was one.