Hi, I have been taking metoprolol tartrate, 75mg twice a day. I also take methimizole, 10mg twice a day, Eliquis 5mg twice a day and Xanax as needed. Started it all because of hyperthyroid and went into A Fib. I have noticed the last several days my heart rate has been dropping into the 50's at night. I have spells of feeling dizzy in the daytime and my heart rate is usually in the 60's at that time (fitbit). Does this seem low? I was thinking I might need to lower the dose somewhat but I don't want to go back into A fib. I have a call into my dr but haven't heard back at this time. Any suggestions would be greatly appreciated. Thank you.
I would like to add that I have been having a ton of anxiety/nervousness, so not sure if that is making me light headed.