Something is weird (QUESTION)

So i have a insulin pump and i switch it up where its attached on my stomach.

So the question is when i have it on my right side it feels like im more sensitive to insulin, example i just ate cookies with chocolate in them without putting insulin, and somehow my blood sugar did not raise it went down. But if i have it on my left side it usually goes up and i Get more control of my sugar. Is there any special reasons Why this happens?

Sorry for grammar error etc, im on my phone and english is not my first Language