Spasm

I feel a sort of spasm in my left leg.

A spasm, violent and uncontrollable, stiffened every muscle in his body.

Jessica went into spasms after eating a peanut.

He would use the simplest, plainest language, he said to himself over and over again; but it is not always easy to use simple, plain language,—by no means so easy as to mount on stilts, and to march along with sesquipedalian words, with pathos, spasms, and notes of interjection.

Both Spear & Davis were indicted in the witchhunt surrounding the sensational (if nonexistent) "Revere sex ring." Both men have said they have been police targets since at least 1975, following the anti-gay spasm which ensued after Dick Bavely's suicide.