I really hope things get better for you. My mother went into hospital after breaking her hip in 2007. The hospital did not give her her food or drink and we did the same as you, taking food in and visiting in shifts so that we could make sure she got a drink. She, along with others on her ward contracted cdif and became really dehydrated to the point where she was chanting "drink, drink, drink" when she saw us. When the results came through to confirm that she had cdif they put her in an isolation ward even though by that time she was not displaying any symptoms. She became so distressed that they got permission to move her back onto the ward. We have had to overcome many problems but what I can say is that once we got mam out of hospital and into care she did begin to eat and is given vitamin drinks. Although her Alzheimer's has progressed, she has put on weight in spite of going through phases of refusing food (the care home liquidised her dinners and she drank them). She also loves cakes, sweets and things like little trifles. Not a perfect diet, but we are happy to see her eat anything! Good luck.