I'm on verapamil ER 180 mg daily. Have been taking Verapamil for 17 years.
I've never felt quite "right" on it but it hasn't been awful, either.
However, over the past year or two, I'm having lots of flushing, I get SO hot, and also have some shortness of breath.
I am also on levothyroxine for my thyroid; however, that has been well-controlled for a long time. I really suspect it is my Verapamil causing these side effects.