after having unprotected sex for quite a while with my partner in the morning, i noticed that a puffy ring was swelling just behind the head of my penis. this seems to be the end of my foreskin, or not, i cant quite tell, however the foreskin no longer covers the head which is causing me some pain/irritance due to its sensitivity when going about my daily business today. is this bad, should i go see someone?? is it just swollen from having alot of sex or just dry from lack of self lubricant...? i really havent a clue whats going on and am very worried, any help is appreciated!