Help for my mother

My mother, 58 years old is having fever for a month now. We do all kinds of laboratory test ( Whole Abdomen Ultrasound, Xray, Anti-CCP: Negative, Ds-DNA: Negative, C-Reactive Protein and RA Factor: Borderline, Ferritin: 1144(super high), LDH: 226(high), ESR: 119 (super high), Urinalysis: Clear, WBC: 14.55(high), Dengue: Negative, Creatinine: 132.60(high), Xray: Clear, ANA: Negative. Now we have to look for other possible sickness that causing her fever for a month and need to do C3, Anti HBC Total,HBSAG, Anti HCV, Blood C5 2 sites, 2D Echo, P-Anca, and C-Anca.Doctors say that if those tests came out negative we need to do another sets of test to find the cause of her Fever of Unkown Origin . I am a housewife and my brother is a shoppee rider. My mother is a single parent. I am asking for your kind hearts for help to fund my mother's ongoing medical test and treatment. May God bless you all. Thank you.