As Ready as I can Be

4 days to go. I have moved out of my house... all my belongings are in storage, scattered at several places, in fact... I am staying at my son Salvador's apartment with only my backpack and suitcase packed, along with a few extra items of clothing I may wear for the next 4 days. I have checked the Camino forums over and over for last minute tips... I have packed and repacked my backpack, thinking (hoping) I can let go of something else which will make my pack lighter... I am saying some goodbyes here and there... what else is there to do but wait, now.
Concerns? Yeah.
-Will I do the mountains alright? High elevation, cooler weather, uphill climb all in the first day. (I have walking sticks and I have cool weather clothes).
-Will I do the plains alright? Much heat, the sun burning down on me, miles and miles of flatland. (OH I bought my hat today...that should help).
-Will I be able to carry this pack? These moving days have been havoc on my lower back pain. (I am seeing the chiro on Monday - hmm a massage would be nice, too).
-Will I have enough time to do it all? I may not be able to walk great lengths each day. I may want to do a sidetrip like to Bilbao to see the Guggenheim museum and Nerea's mom. (Well, I just want to enjoy the journey, not be attached to the destination).
-Will I get sick on the Camino? I had a little scare recently, but I'll be alright. Saw the oncologist this week also, who told me to have fun. (But like my surgeon's nurse said, "They have hospitals in Spain, right?").
-Will my feet make it? So much talk on the forums of foot problems. I would hate to have to end the walk prematurely because of destroyed feet! (But yeah, I read a bunch on prevention also)
And there are others. But you know me.... it always works out.