Prior to my surgery, I had those leg/thigh charlie horse attacks to wake me up at 3 or 4 in the morning!!! My doctor already had me on a daily Potassium pill as a precaution to me taking a Rx for high blood pressure. I can honestly say that after my Sleeve surgery on Jan. 23, I have not had ANY Charlie Horse leg/thigh cramps.
Another old wives tale that used to work for me is a table spoon of yellow mustard... yuck but it's a lot better than that cramp!!!
Whatever U try, Good luck and hope something works out for U, I know your pain.