Me and my boyfriend were fooling around (foreplay) he looked and his hand was covered in blood. I shouldn't get my period for another week. And when I went to clean up there was like... either a chunk of blood or wall or something, I'm not sure. I paniced and threw it in the toilet. Then I got really dizzy, my ears started ringing and I couldn't hear well and I started feeling sick so I sat down and I breathed and I was okay. My period has been strange lately, and I sometimes spot during forplay but nothing like this. Is this something I should be worried about, enough to go to the doctor/hospital?

Since you are obviously sexually active a check up with your Gy/Obn would be a good idea anyway.