hi When I have an erection my foreskin reamains unchanged, it does not come back to reveal my head as i aint circumcised but 3 times durein intercourse with my girlfriend my skin has come bk over my head an stayed there could i have torn anything n it left me in realy bad pain its like tryin to get a 35mm circumference length back in to a 8mm hole it took 2hours last time for it all to go back to normal ive got pics but unsure weather to post them or not on here i am just worried because its never happened to me b4 n i am 23