diagnosed w atrial fibrillation last jan 2009, prescribed coumadi...

diagnosed w atrial fibrillation last jan 2009, prescribed coumadin,2.5 to start per day, now may 2009,leveled off to 10 mg 5days per wk,adn5mg 2days. also since feb prescribed rythmol, coreg & crestor. **but since late March have experienced weigh gain, mostly stomach weight & some upper body. also seemed tired earlier at night, have leg pains which the cardio dr.claims is from the crestor...but this weight gain is crazy.gained at least 5 lbs since mid to late march.