Frequent Urination, Dry, Flaky Penis Shaft And Scrotum, Diarrhea. Had Intercourse, Used Condom. Cause?

About two and a half months ago I had sexual intercourse with a woman who said she has been tested properly for STDs and has never had any. We used a condom, of course, but for some reason within the next three days I started to develop some strange symptoms. First off, I began to urinate frequently. The skin on my penis shaft and scrotum was also dry and flakey. I had fatigue, diarrhea, and chills for the next week. No fever or anything. I went to the doctor and was tested for herpes--which I tested negative for. Within a week, the chills and fatigue left but the skin on my penis stayed dry for two more months. Any idea what my problem was? I feel absolutely fine but still worry it might be something else.