You should get a holter monitor for at least 24 hours. It will track your heart and give the doctor an idea of what’s going on. I’ve worn one a couple of times when I felt my heart was just having too many skipped beats, or rapid beats, but not nearly what you’re having.

This is something you really should be seeing a cardiologist about.

I had my cardiologist switched me over to metoprolol when I had problems with my heart rate going to 120 just walking 20 or 30 feet. I had been on Coreg but talked to a cardiologist friend who mentioned using metoprolol to prevent afib if he felt it might be coming on.

I had an afib event where just standing up my pulse would be 175 or higher for three days. Spent all three days in the hospital, 3rd day they gave me metoprolol and within 30 minutes, my afib stopped, pulse went back to normal.

You need a doctor to tell you what what’s going on.