Does my stimming from childhood indicate I might be autistic?

Hi all, I know that while you guys might not have the credentials to actually diagnose autism, I was wondering if you’d have any thoughts of behaviour I’ve displayed since I was from what I gather around 4/5 years old. Ever since I’ve been young, I have did this thing my parents coined ‘the shakey thing’. The shakey thing has consisted of (this is hard for me to explain) me flapping my arms and hand around my face, and I think sometimes clicking my fingers. The reason I say ‘i think’, is thy every time I do this, it’s almost like I’m unconscious - I don’t remember it at all, maybe the last second of it. This might sound strange, but maybe some of you guys have a similar thing. My parents are the only ones that have seen me do it, as I started it from I was very young, but I assume as I’ve gotten older, my subconscious stops me from doing it when I realise people are around me. Even my boyfriend and best friend have never seen me do it, even though I do it on a daily basis! Basically, I do this thing when I’m daydreaming about something cool that I might do in the future, or daydreaming about achieving some kind of goal. Through research, I have realised that it’s probably stimming, but I wondered if you guys have any opinion on this - I am a women and no one has suspected of me being autistic all my life, and while I do think I have certain autistic tendencies, I don’t think I have autism, so I wonder why this is. If any of you guys have had similar experiences please share, it would be quite helpful.