Anxiety attacks while pregnant

I’m 24weeks 2 days and I went thru the worst anxiety attack this morning and I couldn’t understand why! I haven’t had anxiety attacks since I moved out from home so it really caught me by surprise bc man it’s the WORST feeling ever

I’ve been feeling like shit all day and been having shortness of breath I do have a doctors appointment this Wednesday and idk if I should mention it to my obg

Anyone else going thru anxiety attacks while pregnant and have any tips on how to help it?