What Is Going On??

Once again I have that achey feeling in my left knee and the burning sensation up the back of my thigh. Is it the way I'm sitting in the car? Is it from a previous work related injury? Whatever it is, it seems to be aggravated every time I drive and then walking around at work the next day and it's really starting to get annoying now!

If I knew I could get a doctors appointment some time this year I'd phone in the morning for one, but unless my leg decides to drop off, then I know I have no chance of getting in!! Oh well, time to stock up on painkillers again me thinks...