11 months & refusing bottle

MommaN

My almost 11 month old daughter has been refusing her bottle for several days now. She’ll take 0.5-1 ounce and then push it away. Her overall intake has gotten lower each day. Giving her sips of water with meals. She won’t take Pedialtye or juice. I’m giving her ice cubes in the mesh feeders and oatmeal to get in any fluids I can. Concerned about dehydration. Her upper gums look like teeth might be coming soon. Has anyone had this happen? How long did it last?