I am a 19 year old female, recently some times when urinating there is a strong fishy smell, I used a test kit and it said the PH of my vagina is normal, Its only sometimes, I've noticed If I drink water and then use the bathroom again it wont smell. I've also noticed it recently after consuming alcohol the night before on each occasion. Should I be worried about this? I don't have any vaginal discharge, itching, burning or any pain whatsoever.