Here's the situation:

Last week, I was in the emergency room for severe headaches. While I was there, I was put on 3 different medications to stop the pain, bruised badly from an IV, vomited 3 times, and even passed out. When the scan of my head came back, everything was clear and I was told I had nothing to worry about.

Four days later, I flew down to visit my boyfriend. We had not seen eachother in 6 weeks, so when I got there, we had sex everyday (multiple times) for the 3 days I spent there. The sex was more rough than I've ever experienced (I'm new to it) and longer as well.

The night after I got home, I noticed light brownish-reddish bleeding when I went to the bathroom. The next morning I noticed more blood and it continued onto the next day with a more solid red hue. It's been bleeding for about 2 or 3 days now, and I have cramping pain. It feels like I'm having a less heavy period than usual, but I know that's not possible because I take birth control and I'm not due to have my period for another two weeks. I have taken my birth control for over a year now, and I always take it religiously everyday at the same time.

I'm really scared/don't know what's causing the bleeding/pain. I realize my body has gone through a lot of trauma and stress lately, but I don't know if that would necessary cause this to happen.

PLEASE HELP