These are two books that Guruatma has found incredibly helpful through her own journey with chronic and critical illness. You may find them useful as well.
Japji Sahib by Guru Naanak Translated by Ek Ong Kaar K. Khalsa
Anand Sahib by Guru Amar Das Translated by Ek Ong Kaar K. Khalsa
and of course Guruatma’s own book 6 Stages of Healing from the Inside Out