Arthritis

I have been having trouble with my knee.  Its my left knee.  I really thought it was just because I'm old and fat. It has been bothering me since we ran that 5K in November...So, I went to this sports medicine dr  (okay so don't laugh...me at a sports medicine doc). he was super nice.  Took an X ray and said it is arthritis.  WHAT???  arthritis.  I thought for sure he would drain the swelling and then just give me a cortisone shot and some ibuprofen...I did get the cortisone, but also the speech about wearing away of the cartiliage, bone spurs, blah blah.  can't remember the rest.  If it doesn't get better, I could get an injection of lubrication or maybe have to have the knee scoped.  NOT sure if I'm up to having surgery.  I really hate surgery and anesthetic and coming out of it  But I really wanted to do my 5K running program and it has hurt so I haven't been doing it since going to the dr.  So, I did get a cortisone shot.  felt SOOO much better.  Really.  Thought maybe that would be a cure for me. 

But tonight it I hurting again.  I find myself taking ibuprofen and staying off of it.  I hope I don't have to go back to see what the next step is.  I know its related to being old and fat.  More stress on the joints when you are fat.  Hard to lose weight if you don't exercise and hard to maintain any kind of weight loss with no exercise. . .