Occasional urine burning. Gas problem.

Hello doctors kindly please read it. Sometimes I feel while starting urine something is holding or blocking it for 2-3 seconds. After starting urine it doesn't burn but sometimes feels little warm. Occasional urethral burning if less urine or while giving pressures in pooping. I have gas problem and acidity problem. Consulted A well known urologist 2 times he said u r absolutely normal. I don't find any problem. Your thinking and taking stress about it is making you feel more about it. Some changes are normal with hormonal change in 20s. He did physical examination 2 times and said to just maintain hygiene. I was stressed about Prostatitis or Prostateproblem but he said u r normal. Nothing is there. He only told to do urine routine test and that came normal. At last he said he didn't found any problem but if you still want to satisfy your mind get your CT scan plain pelvis abd. Am I normal ? He said outside food and stress can cause occasional urine burning.