Hello Dear, The problem that you are facing is majorly due to electrolytes imbalances. Decrease in the level is sodium and potassium causes cramp and muscle spasms. To restore balance, you must eat one banana daily,along with it, you can drink electral powder solution twice or three times in a day for a week. This will restore the imbalance and you will feel better with it. Feel free to contact in case you have any more queries.