Palpitations are unpleasant sensations of irregular and/or forceful beating of the heart. In some patients with palpitations, no heart disease or abnormal heart rhythms can be found. Reasons for their palpitations are unknown. In others, palpitations result from abnormal heart rhythms (arrhythmias). Arrhythmias refer to heartbeats that are too slow, too rapid, irregular, or too early.

Surprised nobody else said palpitations, i get it sometimes, not very often though, oh and heartburn i bloody hate that