Lately i've had palpitations, i've had 3 ecgs which were all normal and my doc doesn;t seem concerned. is it possible that sugar is causing them?

Possible but unusual: It would be unusual that sugar is causing palpitations but not impossible. If you continue to be concerned, see your doctor or a cardiologist for a holter monitor or an event monitor.

Doubtful: The most common type of "palpitations" are premature ventricular contractions (pvc's) which just means the ventricle (large chamber of the heart) is beating prematurely. Pvc's can be brought on by stress, lack of sleep, or caffeine but sugar is an unlikely cause. Although somewhat irritating, pvc's are not serious and rarely require any specific treatment.

Palpitaions: Palpitations have to defined more. Is it irregularity in the heart beat or faster heart beat. Ekg may be normal and sometimes a 24 - 48 hr continuous monitoring device is used (holter monitor), you wear this device for the duration and remotely your EKG is monitored. Many times palpitation are only a nuisance however this is only after other issues have been ruled out.

Not likely: Your prior medical history would affect the response to this question. Also, you do you have any anxiety. This or panic attacks may manifest with similar complaints. Also, if you have any heart murmur on examination, your doctor should consider mitral valve prolapse as a possibility. For that you will need an ultrasound of your heart to be sure. Other symptoms u might have might give clues to dx.

Need clarification: Palpitations are sensations of irregular heart beats. Ecgs are 12 seconds each, so 3 represent 36 seconds of observation. Need to have a holter or event monitor to clarify "palpitations". Treatment, if required, is to avoid stimulants (e.g., caffeine), etc. Many medications can be considered, but need to discuss with your physician.