Novolog doesn't seem to be working

[dmorty217]

I am a type 1 diabetic and have been now for 16 yrs I'm 28 and in the past few wks have noticed my novolog doesn't seem to work, even new bottles. I take my lantus in the morning and usually would take 30 units of novolog over the course of the whole day so like 5 to 7 each time I would eat. Now I find myself taking 15 to 20 units at a time in the morning not eating and still having high blood sugars at the next meal time. Last night is a good example I check my blood sugar after drinking and eating, I'm on vacation right now in siesta key fl, and my blood sugar was over 400, I took a total of 30 units of a new novolog flex pin bc I was going to eat 4 hrs later my blood sugar only dropped 100 points so the I took 10 more units and I wake up this morning and my blood sugar was the same as last night and this is with the 50 units of lantus I'm taking up from the 42 I was told to take by my doctor bc I'm trying to help myself and nothing is working please help me! My step father is also a type 1 diabetic for 30+ yrs and has never heard of anything like this