Thanks for sharing. We have had similar issues lately. Pod sites would fail for no reason, no occlusion alarms ever issued and we couldn’t figure out why. We were both also hesitant to chalk every incident up to a site failure early, which led to prolonged high BG. We were following the generally suggested protocol of pinching up a little bit while holding down the cannula end lightly during insertion, not bolusing more than five units, etc. By the time we realized that there was a problem, it was often hard to determine how much insulin was actually on board as it wasn’t really working, and then we would use the pen to inject more insulin in a different site, and wind up with Boomarang blood sugar as I like to think of it.
Also, there was clearly an insulin sensitivity issue going on. We solved it by switching from Humalog to NovoLog and that has made a big difference. We were routinely not getting to day 3, or if he didn’t swap the pod he’d be running in the 170-300 range for a long time. Switching early helped, but it really felt like the insulin just didn’t work anymore. We have not had the same problems using NovoLog.
I also reached out to @Eric and got good advice!
Switching to NovoLog has made all the difference, BG isn’t perfect, but it is certainly better. And we are getting to day three quite frequently.