What causes fever, chills and headache?
Patient: I started chilling and running fever Monday night.  If I take tylenol I can cut the fever but have had to take it ever four hours.  I also have an ice pick type headache on my right side.  I took an UTI home test it tested positive for Leukocytes and negative for Nitrite.  I have in the past had UTI's. Doctor: Hi,Welcome to health care magic,Your UTI home kit is indicative severe urinary tract infection which could be the reason of your fever with chills and headache.Also,you need to be detailed medical history and thoroughly clinical examination by a urologist to get ruled out any other kidney pathology.You should also undergo complete hemogram,urinalysis and ultrasound KUB.You might require antibiotics (quinolones specially levofloxacin in high dose or amixocillin with clavulanic acid) to combat urinary infection completely with other symptomatic treatment like analgesics,anti-inflammatory and antacids with urinary alkaliser like liquid citralka. So,You can consult physician or urologist for further advice.Regards,