Uncontrolled pre semen. Taking it to be.

Since a month, I feel I hardly have any strength in both my legs. The first change point is I am experiencing excess pre semen ejaculations. The pre semen (around 5 ml) gets ejaculated every time I get aroused due to sexual attractions. Say 4-5 times a day. It might be when I'm speaking to my gf or when I get aroused. Previously I did not have a girl friend and may be that's when I did not experience this weakness. The second chance point is since 2 months I'm masturbating once in 2 days. Previously I used to do it once in a week. I don't get pain in my testicles or penis when I masturbate. But, I feel I HARDLY have any strength in both my legs since a month. (I feel legs are very free without any strength) Please tell me what food I need to take and what medicines can help me to get rid of this issue. I'm very much bothered about this issue, as I'm only 25 yrs old. Looking forward for your inputs. Hope it isn't as serious as I'm taking it to be.