Anxiety && Blood Pressure

So I’m almost 6 weeks pregnant and I’ve been dealing with my panic disorder since 2013...... it sucks but I manage

I noticed in the pass when I have this panic attack my blood pressure goes up!!!! And it goes down when I calm down

Now it’s gotten so bad that I panic before I put the cuff around my arm

Please tell me I’m not the only one and how do you deal with this so you can get the accurate reading??

P.s i have my first doctor appointment tomorrow and I’m scared that I’ll have anxiety while they take my blood pressure