On our CodyCross answers based website we have the solution for Painful, involuntary contracting of a muscle. CodyCross game includes different missions and events which update daily so you can earn tokens that are mostly needed to help with answers for challenging clues. Now let's focus on the answer you need for Painful, involuntary contracting of a muscle by scrolling down which is part of CodyCross Simple Toys Group Puzzle 15.