My Mum is very unwell and wont go to see a gp

Patient: My Mum is 87 year old she has developed very red cheeks to her face in the last 4 days, as of today she is being violently sick and bringing up green substance.She is unable to get out of bed as she is very dizzy what could this be. She dosen’t have any pain to her stomach but feels very unwell

Doctor: