I started having two new problems in about the last 2-3months, headaches and a sore right side. Well I found out today that I have a big stone in my gallbladder (can't wait to see how many the ultrasound didn't see) And yes, my headaches have become awful before my period. I've done 3 flushes, but as I understand it now, more can drop down from my liver during the weeks after the flush. I'm not a headachy person but now that I have this stone I seem to be. We have to flush till we feel good again. Have you done flushes?