I'm 24 yrs old, I have never had this situation before, I met this girl recently and we had sex it was our first sexual relation but before it happened in 3 days something wrong was going on with me.
She got me so exsited and I felt like im cuming inside and it gave me so much pain in my testicules, I could'nt even stand on my feet, no need to mention how was the pain and one night I was havin this kind of pain and we got so exsited at this moment.
We had sex then but it was something real fast I couldnt hold it more than a minute anyway after a week (she traveled) I was trying to masturbate and I came real fast before I even got a complete erection.
I am barely getting a hard erection, I work 12 hrs and I work out 2 hrs , I sleep 6 hrs and sometimes less. I dont know if those can be a reason for that.

It just scares me alot, my body has changed.
It usually takes more like 4 min to cum.
Anyone can help me and tell me what is going on with me plz.