Bottles- going round in circles

Hi there- anxious mumma here- any advice greatly appreciated

Our little girl was in the neonatal for 6 weeks and we’ve had her home a week now.

Whilst in there, she started on Dr Browns 0 teet bottle, then they changed it to MAM 0 teet as she was working hard at the Dr Browns/ tiring herself quickly.

I absolutely hated the MAM becuase this whole week at home she’s been coughing on it probably once every feed (which terrifies me to the point I have anxiety every time I feed)

Yesterday we changed back to a Dr Brown 0 teet to try and stop the cough/splutter. YES that has worked so far, but now she taking less milk, tiring quicker and dribbling quite a bit while drinking too.

I don’t want to go back to mam as I can’t deal with it going down the wrong way for her. (She always clears it) but it’s not nice.

Any advice greatly appreciated.