Okay, I'm not a virgin and haven't been for a while... so I'm confused about what's happening.

I haven't had sex in a while... probably about a year. Anyway, I have a new boyfriend and we have been dating for 3 months or so, tried to have sex a week ago.

Let me preface this by saying he is the biggest guy I have ever slept with - not just penis size but he's a big guy (6'5" and 220lbs probably). I'm not sure how big his penis is but big enough...

So I get on top because I figured that his weight would just shove it in... which would hurt. So we go slow, he goes pretty deep - it hurt for a second and then felt fine . Then all the sudden I realized I was bleeding and we stopped, and I was bleeding a ton. I mean like... blood on the sheets, on his hands, everywhere. I put in a pad and I started to feel like I might faint, I have no idea what happened.

So I sat in the bathroom for 2 hours feeling like I might puke... he sat with me until 4 am, I felt like that one time when I stepped on a nail and lost alot of blood. It wasn't an "I'm not ready" kindof nauseous feeling... it was definetly a response to how much blood I lost.

So I went to the gyno and she told me that there was no reason I should've bled like that - no hymen to speak of (which is what they told me at my first ever exam when I was 17...) no obvious cuts or tears, not on my period, etc. etc.
The thing is though that last night I tried to put a finger inside and I started bleeding again (from 1 finger?!?!) and it hurt a bit... I'm so confused. I've had sex successfully and pain free many times - I didn't bleed when I lost my virginity. What could be going on? Should I consult another doctor?

The whole episode was not only kinda scary but also pretty embarassing... he had to wash all his sheets and was pretty concerned.

Thanks for any input.