Hi, I have had the flu and a cough for about 5 days now, very weak, no energy, lightheaded, dizzy. It takes me a while just to get up and go to the bathroom. I have been coughing up white phlegm, and it feels like I have bruised my ribs on the left side of my body. Have not thrown up at all, and nausea isn't strong at all. Any advice would help. thank you.