I developed muscle twitching and a fluttering sensation in the chest shortly after taking Cipro two years ago but this went away after a few months. I am surprised that the fluttering sensation that went away over a year ago has returned and now I am worried that it may be fibrillation of the heart.

Has anyone else had this sensation and did it prove to be heart fibrillation? I guess I should get an ECG for my peace of mind.