My stepmom has been sick for 3 weeks. She is a parapalygic and she s only gotten up out of bad maybe 4 times in 3 weeks. When it first started, we thought she had a kidney infection. Her urine was a dark brown color, but it s normal now. Her doctor called her in some meds but she hasn t gotten any better. Her symptoms are fatigue, nausea, headaches, excess sweating at times, and a fever. We were thinking it could be that her potassium levels are low?