You'll have to experiment. There is one thing you cannot deviate from...take very small bites and don't chew anything that hasn't chewed to a liquid consistency.
Congratulations! Glad to hear the walking has helped with the shoulder pain--it did for me as well.
Words of wisdom by Eckhart Tolle:
"Whatever you fight, you strengthen, and what you resist, persists.”
“Worry pretends to be necessary but serves no useful purpose”
“Accept - then act. Whatever the present moment contains, accept it as if you had chosen it. Always work with it, not against it.”