Is it possible your UTI came back? You may want to see a dr. to rule out the infections.
Your symptom is called polyuria (excessive frequency of voiding). It can be due to many reasons which can be physiological or disease-related, and include excessive intake of liquids, diuretic substances (including tea, caffeine, alcohol, certain drugs), anxiety, exposure to cold, diabetes mellitus, diabetes insipidus (central or nephrogenic), urinary tract infections or obstruction, etc to name a few more common ones. I suggest you to consult a urologist and get it evaluated.
I hope it helps. Take care and regards.