Lord help me 26 weeks pregnant

Tomorrow is my doctors apointment i have tried drinking Gatorade and water snacks in between meals, naps durning the day hot pack cold pack ,hot bath no lights on. Take tylenol every 4 hours as told i could take it. I take vitamins daily, gotten mri anc ct scan done wen i went to the er. I am praying they can help me tomorrow i cant do my dishes without almost feeling like im ready to pass out. I have called out of work all week from being so light headed and dizzy, i am a waitress. I hope the doctor will be able to help anyone eles this bad and there doctor helped them out at all?? Tell me i have some hope dont think i can do 3 more months of this every day to a point i feel tingling and numbing in my face