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On Via Francigena, I walked with a pilgrim who used CPAP machine. I never heard the machine, nor did I hear anyone complain about it. Make sure you have an extension, you won't always be close to an outlet.
I am pretty much set to walk from Cabo de Sao Vicente to SDC beginning in March. I used the Rota Vicentina site to Lisbon. https://www.caminhosdesantiagoalentejoribatejo.pt/mapas/, is yet another good site for more research, thanks for sharing.
I discovered the same thing, "hill/mountain/cliff drop-offs on the left" I though it was just a personal thing and had no basis, I was curious never the less, so I wonder if one is left handed, would experience the opposite.
I am planning on walking from Sao Vicente to Lisbon, then continue on the Portuguese to Santiago, maybe in March 2020.
I did the Coastal Portuguese from Coimbra a few years ago, but as I am reading up on Rota Vicentina, I am ready to do it all over again connecting the two. Any advice from folks...