Severe stabbing pains in leg above knee area?

About 4–6 or so months back, I suddenly got a sharp stabbing pain
in my inner thigh. To describe it as “sharp” is an understatement. I almost passed out from the pain. It lasted about 15–30 seconds the first time, and since then they are always shorter, but the sudden stabbing pain is the same, just shorter.

I have described it as sudden as the pain from chomping down on a big ball of aluminum foil, and as painful as a ice pick being shoved in and twisted around in the muscles. Most pains are right above the knee and a little toward the inner thigh.

I haven’t been to the doctor about it, but am ready to as it is now happening in the middle of the night on occasion. No pattern to the time between hits, went a few months with very little, but now are more frequent.

I’m afraid to drive or climb a ladder for fear that
I may crash or fall, but I must continue to drive, and my occupation requires me to climb ladders. The pain instantly send anything in my hand flying away without control as I grab for my leg. If there was a warning, I would be less fearful, but absolutely no warning time whatsoever.

Thank you for any input you may have, I appreciate your time.