For the past couple of weeks I have had off and on sharp pain in my lower left back, shooting pains through the left side of my face, and now as of today my outer left thigh is numb and tingling?

Neurologist. I doubt that the facial pains are related but the other symptoms suggest a disc pressing on a nerve root emanating from the left lower spine. A neurologist is best qualified to evaluate you for this and for what appears to be facial neuralgia..Appropriate tests will be ordered after the evaluation if your symptoms persist.