I have been on Toprol XL 25mg daily since last May. I am now 46 y...

I have been on Toprol XL 25mg daily since last May. I am now 46 years old and other than this stress-induced high blood pressure, have always been healthy and within normal weight range. Since then I've had the following side effects: * NO SEX DRIVE (I'm a newlywed, so this really sucks), * gained like 15 pounds, cannot lose weight for anything, and I've always been able to lose weight with diet and exercise. * feeling sleepy a lot, * more depression than usual, * and just an all-around-less-energy-feeling. I found a new doctor and he told me to ween myself off of the Toprol XL, but within two days of going to 12.5mg, I started feeling really, really sick, I can't even describe it, like losing my mind, and my body just felt so strange. Well, at this point I freaked out and went back to 25mg a day. I need to get off of this pill so I can get my sex drive back and also lose the weight I've gained. Does anyone have any suggestions on how to deal with the withdrawal symptoms? Thanks.