I don't think your symptoms are from the little infection, and now and them you'll get them, no biggie, however simply have your doc look at just to be safe.

Now to your symptoms, have you checked your blood pressure, and have you donated blood recently? have you done blood work to see how are your hemoglobin, rbc and hematocrit levels? if you haven't I bet that's your problem. also how about your e2?