Suggest Remedy For Intermittent Intense Shocking Pain In Thigh

My left thigh (middle) has intermittent intense shocking pain. It usually only lasts a few seconds, but it happens without cause. (When I'm sitting, when standing, when sleeping.) Moving my leg and standing up doesn't help. I have no back pain and the pain doesn't radiate down. It's focused in the center of the thigh and when it happens it's intense and feels like it gives out while being electrocuted. (Not the same feeling as a charlie horse). I have a doctor's appointment in a week but am wondering if it should be treated more urgently?