A big from me, too Katanya! I can't imagine how scary this must be for you all.

I am feeling upset and like I am failing him again, I don't want to give up breastfeeding, I just want him to get through this without affceting the important parts of our relationship.
Please don't keep doubting yourself! This isn't your fault and I would agree that since you don't know what the full story is yet, that there's no need to stop BFing. I think for comfort and his immunity it'd be the best thing for him until proved otherwise. If they say that supplementing with formula would be the best thing though, I doubt it would have drastic effects on your breastmilk b/c you haven't had problems with supply in the past and you should always be able to have the supply that he needs.

You're using all the resources you have available to you and doing everything within your power to find out what it is and to do the right thing by him. There's nothing more you can do, please have faith in that and in yourself.

It's great that you're getting in to see the dietician earlier. I hope you'll get something that will help him put on weight there. Lara left some great tips too, hope some of that helps him.

My thoughts are with you...