a week ago i masturbated too hard and my foreskin got swollen the swelling went away withing the day but then later on some other problems occured, the one that im really concerned with right now is when i get erect my penis get big inthe middle but not the head and it feels like it gets so big in the middle because the blood isnt flowing easily and earlier i did get an erection but this time the head was larger than usual, i have visited my GP about the irritatoin under the foreskin since this happened and he perscribed me some ointments but i did not talk to him about the erection problem, i am probably going back to the doctor this week but i really need help as to what this can be, for example can i have actually damaged my penis to the point of a blood flow problem or something?
some background information is that i feel this pressure and pullness/tightness feeling on the inside of my penis and also my rectum and i dont know if there related or not,
i am new to this site and im really deperate for help