Last night after consuming an alcoholic energy beverage, my body began to ache and I had chills. I felt cold but my body was very warm. I also continued to yawn and stretch all night and could not sleep. I tried to take slow, deep breaths but after four I would just yawn again. After a couple of hours I finally took some Tylenol and water and I was able to get some sleep. Can you tell me what these symptoms mean? Even today I have chills but my body is warm and weak.