"About how long I have waited to get my knee fixed."

I have been attending my gP for years about my knee pain all I got was pain killers over the years they were changed to find out what one is better for me. I am now on co/ codomol after about 12 years having x/ rays and going through terrible pain, my knee has finally packed in. I have had an x/ray 6 months ago my doctor says the bones are rubbing together and breaking up. fragments of bone have shown up on the x/ray. he had referred me to a specialist but I have been waiting 6 months now and the pain is unbearable. I do not get a proper sleep at night tossing and turning. I now walk with a walking stick and my way of life is completely changed. I am 75 in January they say that your overweight but what can you do if you are not fit to walk and it leads to comfort eating because the pain killers are no good.