I found out over a week ago that I had a blood infection. I had a uti and they said that it caused the blood infection.. I am on vancocin 250mg 3x a day for 10 days.. I just went on the 9th of Sept. to get more blood work done.. But I am tired all the time.. Just want to sleep and I feel real sluggish all the time.. What do you think the problem is.. Thank you... Theresa C