You should see your doctor.
hi there yes i am still taking beta blockers but im worried as my heart rate is going really slow and then speeds up high and when i take the beta blocker it slows down even more but im still getting the palpitations with or without the tablet thank you for your reply.
Call your doctor. It may be due to some residual irritation of the heart, but if I were you, I'd seek medical advice. Are you still on meds?