Hi L.!
Oh I felt your pain! My little one is now 21 months, but I had a very similar problem when she was between 4-8 weeks old. I was breast feeding exclusively, though she had taken a couple of bottles of formula in the hospital b/c I had a c section and my milk was slow coming in and she was jaundiced so the pedi wanted her to get fluids. Anyway, we waited a couple of weeks then introduced the bottle around 4 weeks and oh boy did she fight it every step of the way. I had my husband and mother try, and she would do the same thing - as soon as she started sucking she'd SCREAM and flail around. We started with the Nuby nipples since that's what we used in the hospital successfully, they didn't work. I basically did what one of the other mothers said - bought one of every bottle and nipple they sell - Avent, Gerber, Medulla, One Step, Evenflow, Dr Browns, Playtex you name it I tried it. Then I spoke to a friend of mine that had had a similar problem - she said try to Playtex nurser nipples - in LATEX. I had been avoiding latex since I am allergic and thought silicone seemed "better: . I had already tried the playtex nurser (with the drop in system) but in silicone but she refused it.
So, I tried the Playtex nurser in LATEX and she took it! She still fussed a bit, but she drank most of it. My husband was good at feeding her a little, then rocking her & convincing her to take more etc. I was so relieved, I had been so worried as I was going back to work FT at 12 weeks and had no idea what I would do if I couldn't get her to take a bottle. I was so stressed so I know just how you feel. ANyway, she did absolutely fine with the Playtex nurser latex nipples, and it was easy enough for me to pump and transfer the milk to the nice gerber bags that zip shut and then fit in the playtex drop in system. After she was about 4-5 months old I tried again with the Gerber latex nipples that fit on my Medulla bottles that I use with my pump, and she took it just fine! I never tried a silicone nipple after we succeeded with the playtex latex.
So, I think there's hope, try a bunch of other nipples (especially the playtex nurser LATEX nipple). I also did what one reader said - run the nipple under warm water before giving it. I've heard putting sugar on it is not a good idea but you'll have to figure out what to try.
I suspect you will be fine and will find a bottle she can take. Please let us know what happened. Good luck!!!