I Have Type 1 Diabetes And I Have It Managed

I have type 1 diabetes and I have it managed under control because I am on a insulin pump. My concern is that I have been frequently going to the restroom, about every 40 mins to an hour. When I go it's not just a small amount either. I checked my urine with ketostiks but nothing came up. My blood sugar level was around 150 or lower each time I went/checked