Dear Avi, I was feeling the same few years back. I love my dad so much still I have not recovered . I can feel what you are feeling. It is immense pain when who we love and adore so much going through pain in life and we stand outside. Just go and hug him as much as possible and feed him, bathe him and do whatever u want Avi. The time flies my friend. My tears are rolling Avi… Hugs to you and all who love dad madly like we do.