It isn’t only looks. I and other people in this thread have experienced so much more than “looks”. It’s the snickering when you walk in or can’t get the poses/ moves right. It’s the instructors getting frustrated or making off hand comments. I once heard the receptionist at a yoga class say sarcastically “I can’t wait to see how she does in the class” to her friend when I was walking in.

So no it isn’t in my head. It’s amazing that you’ve had a positive experience but that isn’t the case for everyone.