I don't have PN, but I have had serious problems with vertigo when walking. At one time I used a wheelchair to get things done outside the house and I tried a walker and I have a walking stick. My vertigo (residual post concussion) is much better these days so the chair and the walker days are done, but I still use a cane depending on how I'm feeling and what I'm needing to do.

Just a tip I would suggest regarding moving from the walker to the cane...

Many people seem to lean over their walkers. They put a lot of body weight on the handles. It would be a good idea to make sure that your walker handles are adjusted so that they're at the right height for stability but yet not taking a leaning upper body weight. It they're not adjusted correctly and you're moving to a cane, then that might make you feel a little unsteady.