You might feel it happening at first but it would become more constant and you would probably see it. At the very least at first you would see stains on your underwear.
Thanks Vance
On a discharge would you have to see it or would you know it without looking and feel it happening?
STD's don't have to show symptoms. But if you had one and showed symptoms it would have shown by now with burning while urinating, discharge. Bumps or a sore.