sending prayers for macie! i'm so sorry to hear that you and your baby are going through this. my heart is really breaking for you and it is so hard not knowing for sure what is wrong! i am near chicago (about 30 miles south of city) and there are many options and several specialists to chose from. many of them are 24 hours and do accept emergencies. if this was my baby, i would be looking for another place that could see us right away. here's a link to find specialists in your area.
ACVIM
a friend of mine highly recommends this place. they gave his dog an extra 20 months of quality life after cancer diagnosis. they accept emergencies and are open 24/7/365.
Veterinary Specialties at Chicago Veterinary Emergency & Specialty Center
also a friend of mine used this clinic for her kitty and said it is one of the least expensive specialty clinics in the area and she highly recommends them. it is not located in the city, but they also accept ers 24/7/365.
- Veterinary Specialty Center
i wish there was more that i could do to help, but please know that you and your sweet macie will be in my thoughts and prayers. i will be looking for an update so please keep us posted. hugs to you and macie!!!