Feeding aversion / milk strike / bottle strike

Hello mummies! My 4mo baby has been having feeding issues for 2 months. She started pushing bottle away, playing with the teat, fussing, crying (sometimes really badly) halfway during her feed and refuses to continue drinking. Sometimes she can continue after some coaxing. Sometimes she will refuse. It’s on and off, some days she drinks well and we thought the phase is over, and then the next day the aversion comes back again. Even so her total milk intake was still enough so we just believe it’s a phase and will pass. But over the past few days, it got worst and she wails really badly even when she sees the bottle. She only manages to drink half or less of her usual intake. She also seems more sleepy than usual. But when she’s awake, she is still active and interactive. I’m really worried. It’s been 2 months.. is it still a phase that will pass? We told the doctor about her feeding during a developmental check recently and he said it’s a phase. Should I bring her to see a PD (I read many PD will say that it’s a phase too)? Anything that will help?