Painful, Involuntary Contraction of a Muscle
This page is the CodyCross answer for the clue below from Time for a check-up, Group 1701, Puzzle 2 (Vaccinations).
Question is: Painful, Involuntary Contraction of a Muscle
and the answer is: CRAMPING
Word Meaning:
CRAMPING — present participle and gerund of cramp
Definitions from Wiktionary.