Hi Sarah,
Do you mean that your lo breastfeeds fine but just is having trouble weaning to bottle, or that he refuses both BF and bottle? My ds went the first few months refusing to drink anything, even though he seemed hungry. After tons of doc visits, we finally found out he had reflux, and things slowly improved.
I just want to say to hang in there. Have you tried taking fenugreek to keep your milk supply up? Just a thought... And while your lo is refusing breast/bottle, keep a close eye on signs of dehydration (like sunken soft spot, dry mouth, dry eyes, etc). Babies can definitely refuse to eat until they get sick (in our case, hospitalized), but as long as you and doc are monitoring intake and weight gain, things should be fine.
Good luck on Monday. You are doing everything right...