Hello doctor, a friend suggested Primolut N to prepone my period. I took 1 pill on April 13(night), 3 pills on April 14 (morning, afternoon and night), and 2 pills on April 15 (morning and night). Since then, I’ve had severe pain in my lower left abdomen and back, plus a lot of gas and bloating. The pain keeps coming back. What should I do?" My last period was on March 28.