Okay So Me And My Boyfriend Of 2 Years Had

Okay so me and my boyfriend of 2 years had extremely rough sex last Sunday and I was really dry and could feel it rubbing. The following day I had ulcers pop up inside the lip of my vagina. They were never blisters or bumps just ulcers. They burned when I urinated at first. But have been fine the last couple of days and seem to be going away. Could it just be from the rubbing causing those sores?