Toprol-XL and nauseated

I am 26 years old and have been on toprol xl for 7 years. I started on 50 mg and now my doctor has increased the dosage to 200mg. I am exhausted 24-7, I have joint pain so bad I can hardly function. i can't even hardly keep up on my housework and I can't work. My hair is falling out and has for 2 years now. I have no sex drive which is ruining my marriage. I just had bloodwork done and my tryglyceride level is 915 which it is suppose to be below 150. I just saw an article that said beta blockers will raise tryglycerides(which is fat in your blood). Also I still have high blood pressure, rapid heart rate, chest pains, palpatations, and "episodes" where i become really hot, pale, nauseated, have severe chest pains, cant move, and weird heart beats and my doctor doesnt know whats wrong. My doctor puts me on a special diet and tells me to exercise. I eat better than most people and still weigh 200 lbs. and I am 5 feet tall. I try to exercise but I am so tired and hurt so much, it is just about impossible for me to do. I felt this way for many years and my doctor doesnt seem to care. she blows me off when i keep telling her how I feel. I didnt even really know toprol could cause such harsh side effects. and now that i know that is why i feel so bad I cant do anything about it because i tried one time to get off the toprol for one day and almost ended up in the hospital because of how bad i felt(my heart)

I am a 72 year old male. I had bypass surgery in August 2004. Doctor put me on 25mg of Toprol. About 2 months ago I started having severe hot flashes and cold sweats during the day and night. Have had all types of blood tests - doctor does not know what is causing this. He just put me on antibotics for 3 weeks. I have also been nauseated a lot.
Could Toprol be causing my problems?