Bladder cancer

Mum is 90 but today has developed a rattly cough also has bladder cancer she  is hardly drinking or eating I've given her cough mixture she's not bringing nothing up but I'm worried incase it turns I to pneumonia I don't think 111 would come out and  check her chest but not sure what else to do because pallative care at home I'm not sure if 111would come out though pallative  care lady came to meet my mum the  other  day and said she will come bk in a month mum is not herself today sleeping all morning practically any advice would be lovely thank you very much x