Anyone experienced this?

I’ve been on birth control for 11 days today. For about 4-5 days now, I have been experiencing severe upper thigh pain that comes and goes in excruciating waves. It feels like pms leg cramps like I normally get, only 100 times worse! The first 2 days of thigh pain, it was in my left leg. Other than that, it has moved to my right leg. Tylenol helps, but only temporarily. Once the Tylenol wears off, the severe upper thigh pain returns again in waves. I am taking BC Microgestin Fe 1.5/30... does any one have any idea why my thigh is hurting so bad? Went to the doctor, they said it’s just pms or pulled muscle but this pain is unreal at times!