 [ Symptoms ] will i have to start taking insulin injections if my sugar level is running at 400 on average weekly  i was taking as a diabetic 1 000 milg of metformin a day now i have been taking metformin for a week at 2 000 mlg a day but sugar is running on average at 400 will i have to take insulin injections [ Disease ] hi pease do have a read through this link it cold help you understand things a bit more <link> and also this link from the uk is nhs packed with info and treatments <link> just copy both one at a time into google to the www to open and read do hope these help you good luck