I have Lumbar Spondylosis ,which was diagnosed about 20years back, for the Last 15days I am getting terrible pains at night and early morning when i wake up in my left leg ankle joints in the front area , at times its unbearable , I had got a Uric acid test done which is Normal, this pain is mostly at night when i am in bed and in morning when i wake up, during the day i get it sometimes . Please advise and help....Thank you