Current cycle is Test Cyp only at 500mg a week.

Protein is adequate, hydration is on point. Taking magnesium and potassium supps along with multivitamins. Question is since beginning this cycle, I have been having cramps in the pectoral and deltoid regions and at times in the bicep muscle. I have used test many times at this dose and have had the same happen in the past. What gives? Anyone else experience this? What works to relieve it? Its not extremely painful, mainly just an annoying pulling muscle-cramp type of feel. It actually looks quite weird because you can see the muscle rippling when it happens.

It typically happens when I go to stretch or any sudden movement from a sitting still relaxed position.