My first urine of the day is extremely warm, the color is dark yellow and burns while urinating. Later in the day whenever I clean my vagina with water it slightly burns for 5 minutes and then back to normal but doesn't burn while urinating. I did my complete urine analysis and urine culture and sensitivity but everything is normal. 2 weeks ago I had vaginal yeast infection and got treated for it. Currently there is no discharge or any other discomfort apart from rare. burning sensation. I am worried if this could be STI