I've been a type 1 diabetic for 36 years and have been fairly well controlled. However my blood sugars have suddenly been all over the place. It doesn't seem to matter how much QA I inject, my BS just doesn't seem to come down. Throughout the day I usually give myself 36 QA units. At present I'm having to give extra insulin every 2 hours or so at 20 units a time. My BS has regularly been in the 20s and it's not shifting.
Also, how long has your current insulin been in use (out the fridge)? I'm having an absolute nightmare with mine spoiling and my blood sugar goes up and up as I'm basically injecting water.
As well as the questions above, has this been happening for a day or two or are you talking weeks?
Have you tested for ketones?
Checking basal & that pens are ok etc is things you can do now but I would also be speaking to your diabetes team ASAP as that's a lot of insulin to be having so often