Have been taking Vytorin for about two months. So far, main side...

Have been taking Vytorin for about two months. So far, main side effects have been frequent stools, gas, and occasional diarrhea. Some tiredness; hard to know if it's caused by the Vytorin, though. The only truly bad problems I've experienced happened when I ate a half a grapefruit. That night I awoke with a splitting headache and chills/sweats. The next day I had to take Pepto Bismol before leaving the house because I was constantly in the bathroom. Obviously the grapefruit doubled the effect of the medication.