Over the last four days I have noticed that i have been having erection problems. It takes longer to get hard and is very difficult to keep an erection. I consider myself a very sexual guy and always have sex/masturbate 1-4 times a day. Every once in awhile however, there are these periods in which erections are weak. Alot of times these episodes can be blamed on coming down from drugs or alcohol, or from sexual exhaustion. Then there are the times when I really can not explain it at all. Im going through one of those periods now. This whole week I have only ejaculated once a day which should not be enough to exhaust me. I have not taken any drugs since my magic mushrooms 6 days ago, and its hard to believe that its psychological since im not panicking about it. I know that it is a phase that will pass in a day or two. It would just be nice to know what causes these little problems, and learn how to avoid them.