Does it affect you when you have a shower or in water?
Depends what type of pump you have.
Tubed pumps can be temporarily disconnected for a shower.
Patch pumps can be worn in the shower. And bath
And swimming pool.
I wear it running, hiking, cycling.
But not sauna.
You can wear it when exercising.
I wore mine when I was doing flying trapeze.
I wear it climbing.
I wear it canoeing.
I wear it running, hiking, mountain biking.
You cannot wear it for x ray or MRI
But I have warm it for major surgery.
You can wear it on a plane.
Airport security it annoying (cannot be x-rayed) but very doable.