Labour without epidural due to scoliosis

Hi :) Am a first time mum with scoliosis who is going to give birth really soon. I was advised by anaesthetist that there are higher risks for epidural not being effective for me or resulting in worsened back pain after birth hence she recommended for an alternative pain relief options such as laughing gas or PCA Fentanyl through IV. I’m feeling scared and worried of labour pains without epidural 😢 Any mums with scoliosis who had to choose alternative pain relief? How were your experiences like?