Social anxiety???

So I’m 15 a sophomore in high school and idk if I have social anxiety. I think I do because when I was in 6th/7th grade I would always feel VERY anxious and shaking when I did anything in front of people or do random things like not being able to turn my test in until I see another person turn theirs in. But then I would tell myself to wait a few minutes so I didn’t seem like I waited for that person to turn their test in. It was small things like that in which I noticed I did that I soon found out wasn’t normal. I never told my parents about this or anybody. I also think I have had a few anxiety attacks before I did something that I thought was scary like asking my teacher a question. What do u think??