Cramps

I am 17 years old and have had my period since I was 8 years old. Over time my cramps have gradually gotten more painful. When I was 8, I had no pain at all. Now, almost 10 years later, I throw up due to the pain, and am forced to stay in bed all day due to extreme cramps. Pain killers such as ibuprofen and acetaminophen now have very little effect on me. I am I pretty light weight girl at 118 lbs at around 5'10". I have completely run out of ideas to deal with cramps. Have any of you experienced similar  cramps? And how did you deal with it?