Is it possible to masterbate too much?

I just recently got a vibrator and I basically masterbate everyday. When I use my vibrator, I put it on a low speed and go all the way in,deep and hard. I can feel the vobrator hitting my wall, it feels good. But last night when I went to put it all the way in, my vagina started to have shooting pains. Is it because I masterbate too much? Or that I go to deep/hard when masterbating?