So earlier today my girlfriend and I decided to engage in some Oral sex. We didnt go for very long, probably like 20mins each, usually go for over an hour.Anyway afterwards we went to the movies and i noticed the tip of my penis was a little irritated, from having it sucked on alot i guess. After the movie went back to my house and went to sleep and woke up after an hour or so (Probably 5 hours after the Oral Sex) and my whole penis ached worse than it ever has in my life.It felt like there was a very strong vacuum or something just sucking on it really hard to the point where it felt like it was getting sucked off my body. It hurt really bad, and i woke up complaining about the pain and i told my girlfriend.It went a way after about 20 minutes and now its just barely there. I talked to my girlfriend about it and she said she may have sucked a little harder than usual but nothing crazy. And when she was doing it i didnt notice her doing it to hard or anything.Its just unusual because we only did it once today, and there has been times when we've done it 4-5 times in a day and ive been fine, this has never happened.Has this happened to anyone? Do you think it just somehow got irritated? Or is it something else and it just coincidently started hurting after Oral Sex.