My 1 Month Old Daughter Is Developing Thrush On Her

My 1 month old daughter is developing thrush on her mouth I'm only breastfeeding because she doesn't want the bottle she also has been with her voice hoarse for a few days and she has been vomiting after every feeding even if I burped her she also hasn't pooped like she regularly does. Usually she goes 3 to 4 now it's just 1 the whole 24 hours she cries non stop and gets really red. I also believe she has what is called an umbilical hernia. I don't know what's going on should I be worried it may be something worse?