It's okay, of course you can't concentrate on anything else other than this at the moment. Remember when cushings came up the first time? And then Lysodren, then the crisis, etc, etc, etc. You handled all of that so well, really proud of you.

However, YOU have to learn as much as you can before you start to take it in and feel calm, so finding out what you need to know is your way of coping. Once you have a better handle on it, things will seem more manageable. Your friend is right too, one day at a time and right now, this time, is that you need to step back away from the reading for a bit. You are starting to overwhelm yourself it sounds like and that doesn't let you fully just digest the information. So, calm, step back, do the laundry, do anything else, but try to just not look up new info till you can really wrap your mind around what you have already read.

Just deep breathes. Think calmly, make your notes to talk to vet and go from there.
Big Hugs,
Sharlene and Molly muffin