Anxiety taking over! Advice!?

I’ve always had a hard time dealing with anxiety but It’s been pretty easy to cope with for the past year and i haven’t had panic attacks for some months but I have been having BAD panic attack’s for the past two weeks. I probably had 4 which is extremely unusual for me now. They are so bad that i feel like the walls are enclosing on me and i can’t breathe. I feel like I’m going to faint. My chest gets so tight and it’s so uncomfortable and scary! I just got BFP two days ago....I’m 4 weeks along. Has anybody else experienced anxiety becoming worse when pregnant? How did you get yourself to stay calm? Should I eat certain foods? Somebody help.