No I don't have OA of the knee......but may I post?
Two different joints, bot reacting to OA in opposite ways:
OA hip......worse when walking but eased by rest.
OA knee.....worse on resting but eased by exercise.
Anti-inflammatorys e.g Ibuprofen or Volatarol are the best pain killers, whatever NICE or www. says.
"glucosamine, chondroitin, msm, fish oil ,ginger, curcumin(turmeric) ,and vit c," that is abracadbra treatment......no use at all.
Exercise, take NSAID's until life is intolerable, then choice carefully your hospital and go for knee replacement.