Electric knee pain

[Brandon85]

This has probably be asked about a billion times but I give it a shot. I'm a 31 year old male I'm in great shape. I have a spot on my left knee if I bend my knee and knead on it it's a sharp shooting electric like pain on the outside of the left knee almost dead even with the top outside corner of my knee cap. If I touch the area and rub it no pain it's actually numb but if I run my finger lightly across the bottom of my knee cap the pain is hooting from there to the out side mention spot. And by lightly I mean just light enough to feel my skin with my finger. Please any info would help it affects my work and daily life. Thank you for your time and any ideas and info.