Endometriosis maybe?

Hi, I have been suffering with severe period pain for over a year, to the point I cannot get out of bed and I don't know what to do with myself. It's usually on the 1st and 2nd day but a couple of days before too. I would say  I don't have a heavy period just normal. For example I just took a codeine(left over from wisdom teeth surgery) and it didn't really do much and so I took 2 ibuprofen and that's got it just about bearable. Is this severe period pain or more like endometriosis? Sometimes I have ibs symptoms too but not diagnosed. I'm 17 and had periods since 13. Thanks!!