OMG i so totally get this i have the same reactions. it usually takes me 2-3 years to forget how horrid they were the last time. I was refusing to go again last year and everyone was trying to talk me into it. Also, like you, when i went in for something else, the Dr would start asking me about it and why i hadn't been in for 2 years.

Remember you can always say NO. It is your body.

I finally did get talked into going to a different clinic since i vowed to NEVER go back to my fam dr where i had horrific panic attacks for a whole week following. I went to a different place, told them ahead that i am a survivor and that these are really super hard for me. they gave me the lady that deals with that the most and she was super nice. it was very quick -10 minutes once i got in, vs. the 45 min with my fam dr. and it was far less horriffic. not that i want to run right out again this yr.

my new MD started talking about all this stuff and i dissociated. i finally wrote her a typed letter (with Confidential all over the envelope) telling her that i have a lot of issues with this and really plan on skipping this year and as many as i can. she thanked me for telling her and said ok.

so there are 2 options (as said in the other posts here too) say NO, be strong and do what you need to do.
Or tell them in advance that you have a hard time with it.
Take care of you, ok?!
Kiya