Colorful dreams symptoms and conditions

I have been on toprol 200mg daily for over 5 yrs. I have a hypertropic cardiomyopathy heart condition and it has been my wonder drug. Prior to toprol I was on atnenol (spelling??) and it really made me tired.
At first biggest side effects was the wild and colorful dreams. I'm talking was that real or a dream. Over time the dreams became less and less frequent and intense.
Overall the weight gain has not been a big factor but I don't seem to have the high energy levels I used to have.
I'm not sure if it is the drug or not, but I have acquired a wicked sweet tooth.........

Originally prescribed Ultracet(actually generic Tramado/apap) for arthritis pain. As instructed, I took two pills at night and one in the morning. By mid-morning I was ill--vomiting, dizziness, extreme fatigue, some itchiness. The arthritis pain was diminished though.
It also gave me weird dreams --black and white television stories super-imposed on colorful dreams. Those were actually kind of interesting, not scary.
I don't think this is the right pain medicine for me.