I am so sorry to hear you're having such a difficult time. I lost my Mother to cancer earlier this year. It is awful to have to deal with these things as it is, but even worse since we are ill. I think there are two things at play concerning the weight loss- #1. We are not eating enough carbs #2. We are not absorbing what we eat. I was skeleton thin a few years ago too, but I have managed to put on a couple more pounds since ( although not a lot ). As we heal, I think the weight will come back on. Lately I have been eating a lot more white potatoes because I don't react immediately to them and I must have something to fill me up. I usually eat some protein with every meal, and also organic butter or coconut or olive oil.