Right upper quadrant pain symptoms and conditions

Hi, I was switced from Atenolol to Toprol-XL 50 mg about 1 year ago for palpatations and it seemed to work very little papations now. However, I am currently experiencing right upper quadrant pain and my triglycerides are over 500. I am told I it is drug induced fatty liver disease? I am slowly weaning myself off this medication because you can not just quit per/pharmacist. I also have gained weight which I can not lose, hair thinning, hard to concentrate, elevated triglycerides, calf pain after walking or excercising, fluid retention, feet swelling etc..... for those of you who are on it I would suggest having your triglycerides and liver enzymes checked.