For the sake of your health I would just tell it like it is.
Especially in an experiment situation.....I recently learned the hard way that withholding ANY info to medical professionals can backfire bigtime.

I was getting a surgery procedure in my spine and needed dental work in the same timeframe. Being completely dentally illiterate, I 'assumed' the two professions were seperate entities and had nothing to do with the other.
I was in a hurry filling out the dental form and didn't 'bother' mentioning my surgery issue and ended up putting myself at a HUGE risk for systemic infection because I did not know how much bacteria our mouths harbor and having the dental work done introduced a plethera of bacteria into my bloodstream. BIG no no.

That's just my 2 cents....

Our other RSD friends who know more about the procedure you are talking about can give input/advice and suggestions...but i felt compelled to emphasize being completely open to ALL health pro's.......

Good Luck Debby