I have a weird pain in my back/hip..What is it?

I was going to say pinched muscle in your back that is putting pressure on the nerves going to your legs to make those types of feelings. Once you have pressure on the nerves you can have different types of pain coming from that. To get rid of that pain you have to release the muscles in your back. Here is how to release them:

Back:

(do from a sitting position)

Place your left hand on your left leg next to your body. Place your right hand over your left shoulder and find the muscles next to your spine and press on them and hold. After 30 seconds slowly lower your body forward and to the outside of your left leg, keeping your left arm fairly straight as you do. When you reach your lap remain there for another 10 seconds, release the pressure but rest there for another 30 seconds. Then reverse your hand positions and do your right side.

Before doing this take a deep breath and exhale, then try to keep your body this relaxed for best results.

go see a doctor and make an MRI, it sounds like you have serious health problems.