I don't know if it's palpitations per se, but I feel like my heart rate may be affected. I can't get a good pulse read (old fashioned fingers on wrist) during this time. I have spoken with a cardiologist a year and a half ago, who did an EKG, but I've never had a Holter monitor. He said my heart seemed fine. I've mentioned it to the NP at my neurologist's office, and she said she has heard this from other patients. I agree that you should definitely raise this with your dr.