I have a tingling/numbness feeling in my lower back.

Age: 22 Sex: Male Weight: 210 Height: 6'3" Race: Caucasian Existing Medical Issues: None Location: Lower back Medication: None

The past week and a half whenever I am standing up, my back has a tingling/numbness sensation. It's only in one small spot on my lower back. It isn't painful, but can be very annoying. I do not know if I developed this from standing for long periods of time at work with bad posture, or if it is from working out. I don't think it is sciatica because I have no pain in my leg whatsoever. Just the one spot on my back has that strange feeling. Any thoughts?