I Wouldn't dream about walking the caminho or any long distance hike/walk/pilgrimage without my (LEKI) poles. Did once a day walk without using poles (thought i won't need 'em because i walked alongside the atlantic for most of the day, i.e. all flat terrain) -- yet in the late afternoon, hands/fingers looked 'swollen' and didn't feel too good/comfy - seems like the arm movements/poles usage would prevent those effects. And indeed - Next day I used them again, and all was well ...
It's beautiful landscape you will walk through -- take as much time as you like/can/prefer
hope you give yourself time... no rushing...or mega-miles days.
BTW: In Coimbra i really enjoyed staying at the albergue at the mosteiro in Santa Clara (one reaches Santa Clara first, it's across the river from Coimbra)-
8 Euros. well equipped kitchen to use. very new albergue, opened only in March... and how often one does get to sleep under the same roof as the country's patron saint?
enjoy your caminho....!!