Question
I am 65 years old.  About a month ago I was working in my garden and sat back on my heels.  Nothing hurt, no pain at all.  The next day my knee was warm and somewhat swollen.  I never really had any pain but I could not bend my leg behind me - heal to waist.  The swelling went away, still no pain but now I have a clicking sound in my knee when I walk.  Is it just "old age" or do I need to have it checked out by a physician?

Answer
I would have you knee evaluated by a chiropractor, physical therapist, or orthopedic physician. You may have damaged a ligament or your meniscus. Or even still it may have been an old injury that you just never felt until now.

Best of Luck

Dr. Russ