Loss of appetite, how to manage?

[LillyBear09]

I have met the criteria to get the transplant as my BMI is below the required measure. However my surgeon still believes it would be best for me to lose 20 pounds before the surgery in order to have a better outcome.I know loss of appetite is one of the symptoms when it comes to ESRD however, it has been very much noticeable.

I know 20 pounds is the goal but the feeling of not wanting to eat and not being hungry at all is very alarming. It has come to a point to where I am not hungry l and I eat once a day only because I have to not because I want to. I went to the grocery yesterday and got very few items because I didn't feel hungry and thinking about food makes me nauseated sometimes. With my kidneys declining, I feel as I if I have an eating disorder. 

Has anyone experienced this? and if so, how do you manage? So far I have been eating healthy and clean but not conumsing as much calories. I would say im averaging about 500 to at 800 calories a day. Most I can go is 1000 a day but if I consume that much, I start to feel nauseated. Yes this can probably help with the loosing weight lol, but on a serious note, it is quite scary and alarming.