my foreskin is very tight around my glans when its fully erect, i have to pull it right back before i get an erection otherwise it wont pull back fully when its erect. my penis is very thick so when i get an erection and i havnt pulled my foreskin right back over my glans it streches the skin loads and it gets real sore and makes my foreskin puffy when im flaccid, which i dont mind too much as it makes me look huge (its 7 inches faccid anyway) but it gets sore and sensitive all the time.