As I said avove, there was NO STD risk from the event describe -- none, zero, nada, zilch, nichevo. Got it? That means there is no information you can provide that will change my opinion or advice. Of course you cannot catch NGU through a condom, and NGU doesn't cause the symptoms you describe; it's clearly your "mind working overtime". Frequent urination may sometimes be an STD symptom in women, but rarely if ever in men.