Was it PMS or something else???

Hi, I was wondering if you guys could help me figure something out. My period started yesterday with my cramps being a little more intense than they've ever been before--I actually had to come back to my dorm room earlier than I planned bc of their intensity (nausea & just wanting to curl up with a pillow) &I; believe my flow is slightly heavier than it normally is so far (but one of my meds changed in the middle of the month so I don't know if it's connected to that or not).

What really concerned me was the fact that I was cramping for the week and a half-two weeks before my period even started! Full disclosure I do go to a women's college and my cycle loves to sync up to my friend group's cycle, which 2 of them did start in those 2 weeks. Usually I'd cramp for a day or so PMS wise bc once one of them got theirs the rest of the group knew theirs was imminent. But I had mild-ish to moderate cramps the whole two week period. (Other important info--there is NO chance of me being pregnant--virginity and never having a s/o or a date guarantees that, I take topomax for migraines)

Should I go ahead and make an appt with a dr for this, or would this be my body trying to get back into the whole synced cycle of a predominantly female environment that I shouldn't be too worried about?

Thank you so much!