Is it normal that i felt like i almost had a social anxiety panic attack?

Ok so one time i went on this trip. (I forgot where to.) I was in a room with other people who came on the trip. But it was this guy in front, everyone else were in the back. I sat in front as well, facing him but i also could see the people from the side of me. The guy was showing everyone this robot arm that could be controlled with a remote. It could pick things up like a toy car or a can of soda. While the guy was talking about the robot arm, i was ok for a while. But then my mind suddenly thought that everyone else was looking at me instead of the guy. I could feel my face getting very red and hot, and my breathing got really bad, i was sweating a lot, my heart was beating super fast, and i was shaking horribly ... i thought "is there something wrong with what im wearing?"

"Why is everyone looking at me instead of the guy who is talking?" "Do they see me shaking?" It was was so bad, i felt like i just might had passed out and i almost got up and left from the room. This has happened to me a couple of times. When i am walking in front of someone i feel like i am walking weird and i need to fix how i am walking. If a teacher or someones butt is in front of me, sometimes i feel as if others may think i am looking at the persons butt but i am not. And i start to shake, it is weird. I told my mom, but she says she isn't sure if i might have anxiety or not. She says im just telling myself that and im just making myself believe that. Is this normal? Also i am not quite sure if it is close to a "panic attack"