Help: Need to vomit!?

Okay so I have my period and extremely bad cramps, I am on prescribed medication for it because it gets so bad. Well, every time this happens, I throw up. It's not coming up and I can feel it, I feel terrible. I have been waiting for hours for it to come and I even just created this email for some help. Someone help, how do I make myself vomit? Oh and btw, I don't really have a gag reflex, trust me I have tried. PS: If you are just going to tell me things like "don't force it, it'll eventually happen," or "don't make yourself gag" or comments about anorexia nervosa, please don't bother. I NEED YOUR HELP NOW!!!