Hi, I m 26 years old & I had a history of UTI . My last contact with my fiance was last Dec. 18. Last Saturday, when I was passing my urine , I got a few drops of blood, though not everytime I urinate. Also, I had chronic back pain . I urinate more often than I do before. This past few days, I feel like very tired, I feel like vomiting but I didn t. I got yellowish vaginal discharges. My head ached very mild. It seems that my body temprature gone high, but I don t feel like having fever. I feel like having my monthly period, but until now I don t have. Later this afternoon, I had pregnancy test and the result was negative. I don t understand my body condition anymore. what must I do?