Recently I found out I had a fibrositic cyst in my boob and it started out as a knot and I just started my period for this month (I started when I was 13) and a new numb popped up because I have to give myself breast exams. Could the bump be because of my period or should I schedule another doctors appointment to make sure it’s not any other cyst. I have never gotten bumps in my breast before my period, kinda strange.