refusing bottle!!

Anna • Mama to Lucas. Preggo with our rainbow babe!
Hey guys! My LO all of a sudden has been absolutely refusing his bottles. He is teething pretty bad and will still eat his oatmeal and food but once I try and give him the bottle he screams and won't drink it. Anyone else having this issue? He will be 8 months this weekend. 
Side note- if he wakes at night, which he has started doing again, he will drink an entire bottle but that's about it.