Hi, type 1 last two nights I’ve gone to bed blood sugar levels at 10 so slightly high but not major. Woke up next morning and there in the 20’s!!! They were perfect all last week usually 5.2 5.4 when I wake up and I havnt altered the dose, also last ate around 6pm so can’t see it being food related. Could my insulin be faulty? It’s a new vial. Also noticed my blood starts to creep up between meals so not sure if my Basal injection is working correctly. Anyone had this before?