Skipped heart beats or bubbling in chest. sometimes a vein in right side of neck feels like it's about to explode and a bit of chest pain. what is it?

Premature beats: Often premature beats may cause a fluttering in the chest. They may also cause a skipping sensation. If the upper chambers of the heart contract after a premature ventricular contraction against closed valves, blood may regurgitate into the pulmonary and neck veins. This may be evaluated by a cardiologist.

Possible arrythmia: Need to go see electrphysiology cardiologist or cardiologist. Will have to wear event recorder to try to determine if there is a cardiac arrythmia occuring when you feel your symptoms. Once that is determined further advise can be given. Duration of event recording may extend several weeks or months.