My mom’s battle to LUNG CANCER STAGE 4

we are still waiting for the biopsy result..this mass is causing my mom cough, vomitting, high fever, also diarrhea..She lost a lot of weight and her potassium level is very low.. Her body very weak and occasionally shaking.She cant even stand.She's confined in the hospital for almost a month now and this is the 3rd hospital that weve been because they still dont know whats going on with my mom..The doctor said its very complicated.She has been with a lot of lab tests xrays and ct scans.. Both hands have IV connected.. They given her different kinds of antibiotocs..Our hospital bill is around 200,000 peso and still counting this is without doctors fee as of now she have 4 different doctors checking on her.we need any help that we can get.Please help my mom.