Baby making wheezing sound while drinking

Hi guys, I’m concern about the constant wheezing sound/choking sounds made by my 5 weeks old baby during feed (occasionally in her sleep too). She has been making these kind of sounds and choke frequently since birth, but it’s getting louder these days. She seems to have difficulties breathing, checked with polyclinic but doctor said it’s okay. Anyone experience the same for their baby too? Hope to get some advice! Thanks in advance! :)