Problem - Insulin suddenly very ineffective?

i am able to maintain 100 BG easily and now insulin is? barely affecting my BG to the point where after my only carbs in a day were 35 grams from 2 pi

i am able to maintain 100 BG easily and now insulin is? barely affecting my BG to the point where after my only carbs in a day were 35 grams from 2 pieces of toast and i took a total of 70 units of insulin and still had a BG of 210. i have a pump and have moved location 2 times to unused areas. is there any explanation to this?

or:i am able to maintain 100 BG easily and now insulin is? barely affecting my BG to the point where after my only carbs in a day were 35 grams from 2 pieces of toast and i took a total of 70 units of insulin and still had a BG of 210. i have a pump and have moved location 2 times to unused areas. is there any explanation to this?

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