I was wondering if anyone else gets this. I'm 18 and have obnoxious knee pain. It wasn't always this bad, but it's gotten really hard to walk recently. But at the end of the day, around 6 PM, my legs HAVE to be straight or my knees will be in severe pain. It makes going to sleep very difficult. I don't know if any of you have this problem and how you fix it? And no, I can't go to the doctor for it seeing as though we have no insurance. Please help!(: