Hello There,
It seems problem is because of muscle twitching. In muscle twitching, specific muscles get contracted due to hypertonicity by repeated stress. Electrolyte imbalance might be the reason sometimes.
Get "Electrol Powder sachet" at medical store and add it in 1 liter of water and drink it. 'Banana' is the natural source of all
electrolytes. Have Banana regularly if you can.