Thank you both for your kind replies; I should have mentioned that I decided that I could not carry my pack from Day 1 so I based myself in San Sebastian and over the 5-6 days walked all sections from Irun to Deba.
When I was younger and fitter I would've been embarrassed to admit to such a pathetically short walk, about 10 miles a day, but now, at 68, I am grateful for small mercies.
For the record I have 2 hernia problems; one repaired but both troubling me if I carry or strain. I also have 2 shoulder injuries, one old, one recent. My feet have numerous problems but the Hoka running shoes I discovered have been a blessing for me Even then, after about 10 miles I'm more than happy to get a bus/ train back to the hostel, change into the Tevas and head for the beach.
So, now you know, and you will also know why I'm nervous about leaving Deba; it's the point of no return
Sorry if there's too much info, but perhaps this might encourage more like me, who just love to walk, to work out a way to walk the Camino
Old Nick