Does insulin pumps work by them self according to your blood sugar? or does..?

Hello; I'm getting an insulin pump and i have an appointment with my doctor tomorrow, i know i can ask him all i want about the insulin pump, but i'm curious i guess. this problem is why i'm getting insulin pump, my blood sugar goes down to less than 40 mg/dl when i'm asleep and i don't... show more Hello;

I'm getting an insulin pump and i have an appointment with my doctor tomorrow, i know i can ask him all i want about the insulin pump, but i'm curious i guess.

this problem is why i'm getting insulin pump, my blood sugar goes down to less than 40 mg/dl when i'm asleep and i don't wake up as i used to, i just start to get spasms i broke some of my teeth and almost ate my tongue, then i find my self in a hospital with headaches, so my question is

1 -does insulin pumps work by them self according to your blood sugar?
2- or at least does it beep if your blood sugar goes down or something wrong happens?

thanks in advance.
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