Should I tell my group at camp I’m autistic?

I’m going to a travel summer camp and it’s a group of about 12-16 people and I am pretty “strange”when I speak or when people get to know me they definitely will see me as different I do stim a lot I like to shake my wrist and jump ect I dont think they will guess autistic but I have anxiety telling people on the other hand it might help them understand me… or it could totally be a bad idea to say it. HELP ME PLEASE🥹