Hello. This could be because you have Asthma. I get this myself and its perfectly harmless. Or you may be experiencing a slight palpitation which is also normal. I'm not sure if a palpitation is all that normal. If a fluttering is in the chest after a sneeze, my bet would be on a twitching or an intermittent spasm of the diaphragm. The diaphragm is a muscle that sits at the base of the lungs and is responsible for allowing you to take air in and out. During a sneeze, the diaphragm has a violent and intense contraction. After the sneeze, it is quite possible to experience this muscle twitching. Any muscle that contracts in such a way can still have residual aberrant contractions.
flutter, have the shakes, jar, jitter, oscillate,palpitate, quake, quaver, quiver, rock, shiver,shudder, teeter, throb, totter, tremor, wobble Thesaurus.com =^.^=
abnormal heart rhythms in which the atria, or upper chambers of the heart, are out of sync with the ventricles, or lower chambers of the heart. In atrial fibrillation, the atria "quiver" chaotically and the ventricles beat irregularly
quiver
The word quiver is the collective noun for a quiver of arrows.
An adjective for the noun quiver could be violent--a violent quiver.
Quiver
The collective nouns for arrows a 'sheaf of arrows' or a 'quiver of arrows'.
quiver (case for holding arrows)
A group of cobras is called a quiver
Ventricular fibrillation, or V-Fib.
a smack of jellyfish a quiver of cobra
The arrows were stored in a quiver.