Hi Kirsti,You are not alone,i too get this.I have been on letrozole for just over a year now.Finished Herceptin 3 weeks ago.I have only been having this happen for the last couple of months,weird sensation,nearly asleep and heart starts to race.Not a nice feeling.
Nothing wrong with my heart,have been having regular checks with taking Herceptin.I was thinking along the lines of panic attack?but cant see why when iam relaxed and just drifting off to sleep,very strange.
Heather x