OK, UPDATE.......

I decided to check my blood sugar after posting the last message out of curiosity because of the different sugar alcohol lactitol.....since I've always had malitol. Well, at 10:20pm my blood sugar was 82. I ate 4 pieces of the Reese's PB cups and checked again at 10:54....it read 74!!!
That (I hope) is telling me that Lactitol does not affect my blood sugar.
When I eat Malitol, it raises my blood sugar 20-30 points depending on how many grams are in there.
I am just borrowing my friends glucometer this weekend to do some testing like this. So, I dont know a whole lot about blood sugar ( I found out quite a bit though this weekend doing all of this)...but I hope this is true and it DOES mean that Lactitol does not affect me.
I am gonna test again in another 20 mins.
Vicky