I needed Metoprolol Tartrate for a very high heart rate for grave...

I needed Metoprolol Tartrate for a very high heart rate for graves desease, I was in the 115's+ lowered too 8o beats per min. Which is great! BUT, having some horrid side effects. BAD night chills, intolerance to cold. Shake for 3+ hours then sweat. Feels like I was hit by a train after then I get very nauseasous and light headed Sleep is bad, toss and turn all night and have a greater fear of the dark ALSO, my bones hurt all the time!! Never did before, had tests done nothing there. This is the only drug I could find that didn't make my heart flutter and feel all funky. Its a great drug for just that. All the side effects suck..bad