Yum has been stuck at 2.75 units for over 2 months. She could do the "7 days of green" reductions, except for an erratic, high AMPS. (1)Last week I tried increasing her dose from a fat 2.75 units to 3 units. I brought her nadir down, but the AMPS stays high. (2)I have been withdrawing her food overnight for months, hoping that would help the AMPS. It hasn't. She occasionally throws up foam around 4 AM, so I know it is hard for her to go without food overnight. And she is a little bit cranky in the morning. Because of these behaviors: (3)I had tried feeding her LC at PMPS+9 (3 AM), but that didn't help. (4)Night before last I thought: what if I give her a zero carb treat (Purebites freeze dried salmon) in the middle of the night? Woohoo!!! The last 2 mornings she has had normal AMPS AT2 numbers of 166 and 160. Those are equivalent to about 100 on a human meter. I am going to rush out to PetSmart for a PetSafe 5, so I don't have to get up at 1:20 AM!!! Hope I haven't jinxed it. My theories often seem to work at first only to fail after a few days. Hope is wonderful while it lasts.