paroxysm

A sudden outburst of emotion or action.

A sudden attack, recurrence, or intensification of a disease.

A spasm or fit; a convulsion.

In medicine, a fit of any disease; periodical exacerbation of a disease.

Hence Any sudden and violent action; spasmodic affection or action; convulsion; fit.

Figuratively, a quarrel.

The fit, attack, or exacerbation, of a disease that occurs at intervals, or has decided remissions or intermissions.

Any sudden and violent emotion; spasmodic passion or action; a convulsion; a fit.

A random or sudden outburst (of activity).