My mom has arthritis and I am afraid of getting arthritis since the risk factor increases since she has it. I am only 20 years old…and the joints near my knee crack very easily. my feet are not very flexible in general..i am not comfortable sitting on the floor and my legs fall asleep very quickly when I sit indian style. Actually, in general my feet fall asleep very very easily…sometimes up to 10x a day. My mom told me this happens to her as well. Can this be a sign of arthritis? How can I prevent myself from getting arthritis? What can I do about my legs falling asleep so much?

Please answer all questions and give me as much feedback as possible..I apologize for this question being a bit all over the place.