Talk to Internal Medicine on Xtreme Weak / Dizzines

Dear Doctor,

My mother is facing the problem of extreme weakness and dizziness since past few days. She can't even walk now independently and has to take help to get up from the bed. Before this all started my mother was facing diarrhea and throat irritation and she used antibiotic for their treatment. She was getting better and suddenly all this started. We called the doctor and the doctor prescribed her vitamin drip, medicines[Tagipmet, Amaryl, Coversyl, Rovator] and suggested her following blood tests and the results are mentioned below: - - Chicken Gunea - Negative - Malaria Negative - Glucose Random - 314 - Calcium - 9.0 - Vit D - 18.8 - CBC Report - Except Neutrophyils & Lymphoctyes everything was normal. One was 85 slightly elevated and one 8.5 slight below range respectively. - Tyhpoid report is still pending. Expected on 17th. Kindly advice -- how we should proceed on this matter ? [ doctor / blood test / way forward ]