Hi, does any one think that because novo rapid is made in vast quantities, sometimes you get a vial that is stronger than previous ones, I say this as I took my usual dose with my evening meal, and my blood sugars dropped like a log ( 2.8 a 3s)and I was struggling to get it up to a reasonable let before bed. Has anyone experienced this I was having to constantly drink coke , and it was not that I had to much insulin and not enough food, in fact I think I ate more than usual. It wasn't until about 4am, that things started to get comfortable before I went to sleep, and when I got up my sugars were around 8. Any ideas ??