Catheter change sugar rise

Hello!I wanted to ask, every time I change the insulin catheter I am like 4 or 6 hours very high, I'm getting bowling and in the end I have to take sugar for how low I am.Has it happened to someone?My endocrine says that I care badly, in Medtronic they say that it is the doctor's thing, but what I see is that 1 in three days I am high because of catheter change.Thanks and greetings

It happens to me exactly the same, but in some changes not in all.

It seems as if insulin accumulates under the skin and then passed even if my endocrine says it cannot be.