Starting day 4 after installation. Black and Blue the size of a baseball where port is installed. Normal?

yeppers....that's pretty typical. You probably have or will have some others as well. It's from all the tugging and moving around of the various instruments through the little holes the doc makes.

Let's clarify:

Black and blue FLAT circle the same diameter as a baseball but flush to your skin? Totally 100% normal. That was the only place I stayed sore after the first 2-3 days.

Black and blue BULGE that makes it look like a baseball is trying to come through your skin? OMG NOT NORMAL. That would be a reason to go to the hospital.

I sincerely hope you're describing the first one.

Good luck!