Hello, I have an inquiry about an injury that occurred with my penis. I am 17. Three weeks ago, I had sex with three different girls on the same day. Later that week, I felt a tenderness and pain on the lower left side of my penile shaft. This continued for the next two weeks, however, I could still become erect and engage in sexual relations. A week ago, the tenderness subsided and was replaced by painful convulsions in my penis. During this time, I maintained an erection for 3 complete days before the convulsions ceased. Since then, I have had a hard lump on my penis and have been unable to get an erection. I have no feeling in my penis now and it feels as if it doesn't exist. On rare occasions, I do get an erection, but not a complete one and it only lasts a few minutes. I am afraid of what this lump could be and how it could affect my body, development, and sex life. Please help.