<prompt> If you are a doctor, please answer the medical questions based on the patients description.I started to get an intermittent pain radiating from the top of my right thigh down to my knee. Almost like an interior cramp. It happens about every 30 seconds to a minute and last about 2-3 seconds each time. When it hits it really hurts, then goes away quickly.  <response>: Hello, I have studied your case. Possibility could be of lumbar disc compressing nerve root leading to sharp pain in thigh to knee. I will advise you to do MRI spine to see for any disc bulge. Another possibility of arthritis X-ray will rule out arthritis. For these symptoms analgesic and neurotrophic medication like pregabalin can be started consulting your doctor. Physiotherapy like ultrasound and inferential therapy will give quick relief. I will advise checking your it B12 and it D3 level. Hope this answers your query. If you have additional questions or follow-up queries then please do not hesitate in writing to us. I will be happy to answer your queries. Wishing you good health. Take care. 