Hello and welcome to HCM. Thank you for your query. Starting from the very beginning, was a diagnosis of a urinary tract infection (UTI) made with the support of laboratory analysis? Or was this just a clinical diagnosis? Please get your urine analysed and follow this up with a urine culture. The presence of microscopic blood in the urine is also an indication of a UTI, but if you noticed the blood in the urine, I would recommend an abdominal and pelvic ultrasound along with the urine examination. Next, which antibiotic were you prescribed? Did you take an adequate dosage and for a sufficient amount of time (as mentioned by you -3 days)? All these aspects need to be discussed. Next, nausea and vomiting accompany a UTI, but very rarely seen with a UTI. Has your doctor ruled out stomach flu (stomach infection)? Please look into this? How exactly are your stools? And what color is the vomitus? Please discuss all these details with your doctor. In the meantime, I request you to also get your glycemic profile checked, due to the constant thirst, which could also be because of the excessive loss of fluids due to the UTI, but it is better to rule other conditions out with this. Also, please consume plenty of water, add cranberry juice to your diet. Discuss the addition of pain management medication and a potassium chloride based solution to relieve you of your symptoms. I hope I have succeeded in providing the information you were looking for. Please feel free to write back to me for any further clarifications. I would gladly help you. Best wishes.