Hi Becca,
Very important question.
I understand your concern.
I do not know the answer to your question.
It seems your pain doctor and friends here gave reasonable advice.
You will see I have a recent thread which mentions a CRPS flare after biopsies.
I just want to be sure we all understand these were skin punch biopsies done on my foot and leg, which is where my CRPS is -- on both feet/ankles.
I tend to think, sometimes, we must weigh the potential costs/benefits and move forward, thinking positive and in our minds, picturing a very positive outcome.
I am guessing here, yet I think your GYN wants to do a biopsy to make sure you are okay? It's an important procedure, which could be life-saving for many people.
I wish you the best.
Love All Around,

DejaVu