Nah, not crazy, it's no wonder we end up paranoid sometimes. Even doctors and nurses are guilty of assuming everything that happens to us is somehow linked to diabetes!
You're right to try and put your mind at ease, no point worrying in silence. I really think your feet/legs sound like they're just behaving like regular, boring, normal legs. If your symptoms worsen or you can't put your mind at ease then perhaps discuss it with a healthcare professional.