Good Evening! My husband takes Enbrel, by injection, weekly, for Rheumatoid arthritis, and now has some heart issues and is taking Diltiazem, orally, twice a day. Ever since beginning the Diltiazem, he feels terrible and his joints are swollen all the time. A man who once ran marathons and walked at least 10,000 steps a day (fitbit) up until now, can barely walk and is in pain all the time. His Rheumatologist does not think the combination of drugs is the problem, but I think it ironic that these problems began with his taking Diltiazem. Please advise. Thank you!