Period pains! Help !!

I'm 15, I've had my period since I was 11, it started off with no pains I was just very emotional but during these years it has gotten worse.

My period pains eased up a bit after I lost some weight but now they have gotten to the point where I feel like I'm about to vomit, I have to stay at home during that time so I miss a lot of school days and I have a fever during that time. I take painkillers but they don't work anymore and I also try the heating pad but that only eases the pain for a few minutes.

I have a heavy flow so I usually use tampons and pads at the same time. Any suggestions as to what I should do?

Please help. 😊