My son wakes up at night with his knee hurting. I have notices sometimes it is with the weather changes. But it looks kind of funny. Several trips to the dr and x-rays twice and blood work to see if anything is wrong. They did not find anything. It is off and on, only at night usually. My husband said he is walking a little funny and it looks different. I need help too...I am going Friday to see if we can go to a specialist. I want to make sure it is nothing serious! Any sugesstions since I have already taken him at least 5 or more times for this? They always say it must be growing pains.