i am 42, have been on simvastatin for 2.5 years, for the last 6 m...

Dear sharbar, As i see you have been on simvastatin for quite a long time, let me inform you that simvastatin has been known and is known to cause muscle dystrophies and myopathies, that is muscular cramps , once a patient ends up with muscle problems the fact remains you will end up feeling fatigued, so try and stay off of it for sometime else if you cant help it try CRESTOR, it might be a little expensive, but a little does goes a long way in keeping those bad LDLs off your cholesterol score. Take Care dude.