ive only just seen this thread so apologies for the late advice.
3 out of the 3 female members of my close family have gone through this stage so very common. and I know of 5 of my friends who have had your stage of investigation.
As for my female family members 2 out of the 3 (including me) have had to go onto the next "lasering" stage. But we both had two very different experinces.
I would recommend you get completely knocked out. I was fine, not nervous or anxious until they used the needle for the injection .... then my blood presure shot up and they had to put me in recovery for quite some time afterwards. My sister on the other hand had no problem at all and was in and out in no time.
Its not nice, but worth the peace of mind afterwards in ALL of these procedures.
Hope it comes back clear and you dont need any further surgery ..... you certainly arent alone!!!