I have a meniscus tear in my left knee and arthritis in left knee and left and right foot . I exercise using a stationary bike and use ball to roll under my feet . The physio has given me exercises to do for my feet, ankles and knee. . 

Lately as I walk my left knee is really hurting to walk on it is better when I use my walking stick . I was supposed to be having an appointment to have a look at repairing my meniscus months ago .but not happened yet .should I carry on with exercises and walking or just give up.