I am SO at a loss. I posted a while back about my DD's insulin needs dropping by more than 1/2 over the span of about 1 month. Endo was concerned - did some bloodwork for hyperthyroid, celiac. All normal. Now, about a month after that, and two months after her needs dropped dramatically, they are increasing daily. She's not sick, and this has been going on for about 3 weeks, so I don't think it is that she is sick. She has more than doubled what she is taking, and we are still working up on some of her doses, and still in the mid teens for a good chunk of the day! What the heck? I know some variation is normal, and some adjustments with growth, change in activity etc. But doses changing by 2 or 3x on a regular basis??? Does that happen to anyone else? Can TDD change this much just from a growth spurt? In case it matters to you - she is 4 years old, pumping on the Ping, we use Dexcom, and is on Apidra. Her TDD at the moment is about 20 units (and still going up). Was at about 9 units this time a month ago.