Mama Needs Advice [!!]

Lord have mercy it's been a long couple of days at our house!  I'll just lay it out there...our kid is not happy with us!  We're trying to make the transition from bottle to sippy cup.  We introduced sippy cups [off and on for a couple of months]...baby girl has never wanted anything to do with them.  [side note: she also has ZERO interest in any food except homemade babyfood!  What is up with my kid?!] 

So, as I was saying...Monday night I picked her up from daycare and thought 'tonight is the night' I only offered her a sippy with whole milk.  She wasn't happy with me, but did drink about 4-6 ounces throughout the night.  She woke at 2am [hungry/thirsty I can only imagine].  I went in and offered her the sippy.  She nicely swatted it away and proceeded to cry [whine] for about a half hour.  She woke around 6am and Adam again offered her the sippy cup.  This time she drank none of it and decided she was getting up for the day. 

I was in meetings most of the day yesterday, but I got a few updates from the sitter indicating things were not going well, but she's had off days before so I didn't think too much of it.  Adam talked to the sitter multiple times and was giving updates [on how very mad she was that she wasn't getting the bottle she wanted!].  She took a morning nap [something she rarely does] and a [short] afternoon nap.  I picked her up from the sitter after my meeting and she just looked pathetic.  She was also wheezing a little, which is something she has never done before. 

This is getting long, so I'll cut to the chase.  I took her to Urgent Care last night for the wheezing and long story short they said she was fine and just being stubborn.  They also said that as long as her mouth is wet/pink she is okay to go without drinking. 

So basically...she's just being stubborn confused.  She doesn't know what's going on and is sad.  I really feel like if we could go another day or so she would get that her only milk is going to come from that sippy and she should embrace it.  But yesterday when I picked her up from the sitter she said if she acted that same way again tomorrow [today] she wouldn't be able to watch her. 

I don't know what to do!  I hate seeing my baby sad [especially when I could make it better] but I also feel like the bottle situation isn't going to get any better.  I feel like I'm not getting support from my sitter and she is frustrated from hearing her cry and be unhappy, but I don't really know what to do.  I don't want her to be upset or short with Jordyn, but I really don't want to find another daycare provider either.  I'm so torn!  I don't think she is a bad kid & she spends less than 30 hours a week at daycare.  What do I do?  Do I take today and tomorrow off and work with her for the next 5 days?  Do I give up and try again in a couple of months?  Everyone I talk to [friends, parents, our sitter] said their kids transitioned fine and it was never an issues.  What did I do wrong?  

Crying & Desperate,
Mama