Same here friend. Although I do enjoy hugs and stuff like that, some gestures do make me uncomfortable. As we know, aromanticism is a spectrum. Some aros are more open to cuddling, kissing, holding hands etc., while others like us may feel more aversion to certain gestures, including platonic. Romantic coding is a thing I’ve seem around the community, and I think a possibility may be that those platonic displays of affection may be coded as “romance” for you. It could be for other reasons, but these were some I thought would be nice to think about. Also, no, I don’t think it’s just in aspec communities. I actually do know a couple allos in real life that feel uncomfortable towards certain gestures, whether it be romantic or platonic (my friend doesn’t really like hugs at all.) But thank you for sharing your question! And don’t ever feel stupid for asking, all questions are valid. Have a great day ?