I don't know if those are the reasons, but I started having problem with
my knees a while ago. Tried using a good knee
brace, not much help. For the past 1 month or so, I can feel my left knee(right knee is perfectly fine, God forbid) going stiff(even while driving). I do not have any other issues. I am normal weight & height and in my later 20's.
I have seen people suffering with arthritis. They are unable to do anything normal.
I am very concerned.
Can this be ok in exercises?