Do I need surgery for my knock knees?

I'm 16 years old. I don't think my knock knees are bad. If I stand with my kegs straight my feet are just an inch apart. They dont bother me at all. I feel no pain or anything. Ive heard that knock knees are considered to be severe if the feet are 3-6 inches apart. Mines is only one inch. I don't know whether to worry about this a lot. I don't want surgery at all. I'm so scared of it. If this isn't a bad case, can I do some exercises to help fix my case because I dont want to get arthritis when I'm older either. Please help thank you. An should I go see my pediatrician about this?