The medications you are currently on are the reason why your condition is stable and your feeling fine. These medications are what help you manage your medical problems and going by the list of diagnosis on your discharge card all of them will have to be continued.
The symptoms of weakness and loss of appetite are probably due to reduced appetite. You should try to eat a balanced diet rich in fibre and plenty of water or fluids you should be able to get over these symptoms. You can also add some multivitamin
supplements to your medications.