I have muscle cramp in the right leg since monday im always in pain now since today i have cramp left leg and arm but not all the time mostly evenning?

Cramps: Muscles often cramp. While it is possible that your potassium is low, this should be easily corrected by taking a supplement, or eating a banana or drinking a glass of orange juice. If this does not correct it, you can try drinking 2-3oz of schwepps tonic water at night before you go to sleep. This can be taken up to 2-3 times per day if needed.