Sharp pains up right leg every once in a while then stops and sometimes feels like hot water going down leg?

Sciatica: Sciatic pain can be from irritation of the largest nerve in the body passing through the hip region, or from a vertebral disc that pushes on the nerve roots that will form the sciatic nerve. Pressure on the nerve refers sensation to the leg and may feel like hot water. See a orthopedist or an osteopathic physician.

Sciatica: Usually sciatica. Get x ray and MRI of lumbosacral spine.