Suggestions on this strange pain!?!

Suggestions on this strange pain!?

I have a pain that starts in my lower back and shoots into my knee like every five minutes. It is not sciatica...I have sciatic pain all the time...this is different. There is no pain between the back and the knee, just the back, then the knee. From t he knee down my leg is almost twice the size of the other one. It is strange.

3 weeks ago
I thought about the kidney thing actually...I ruled it out because I have no other s/s of renal failure or disease.
What other nerve could it be? I am not up to date on the anatomy of all the nerves...just the sciatic because that is the one that is ALWAYS pinched in my back. Nursing jobs are rough on a person, but I love every minute of it! lol

I don't know. But maybe you should see a real doctor. Specially if swelling is involved.