I am so sorry to hear Molly is unwell. I hope she gets better soon, It is stressful for us when our cats are not feeling good and have problems, I have been through this with Jack the past month, and have felt emotionally drained so I know how you feel.
We are thinking of you molly!
One thing I've heard before for a cat that is ill is to either feed Tuna, plain white fish or Chicken as these are easy to digest. Just Chicken you would eat yourself, either boiled or cooked in the oven.