My grandfather (75) is having some unusual legs pain problem from a very long time. Initially it used to be bearable and was easily reduced by pain killers. But now it has become unbearable. Unusual thing is about how the pain goes in his body. During the daytime he is always good. No pain, not even signs of any disease. But during night about 7-8 pm pain starts and goes on till 6-7 am in the morning. Another thing is it pains like electrical shocks after every 2-3 seconds which goes from legs to all the way to upper body. Consulted ortho doctors and on their suggestion neuro doctors too. Run through all tests, X-rays, blood tests etc. No disorder or deficiency is visible. Consulted some ayurvedic doctors too. They said it to be a disease called "Chattak" Please help as he is not able to sleep for a minute from last 3-4 days. Thanks.