The symptoms you describe do not sound like any STD. To answer your questions:
1) Cipro would have cured gonorrhea and possibly chlamydia, and therefore could have made the tests negative. 2) Follow your own provider's advice about testing, but my best guess is it would be a waste of time and money. 3) Yes, this sort of story is common. Almost every case in my experience was anxiety-related, not an STD or any other infection. 4) Maybe "nuts" is too strong a word, but your wife likely is right.
Good luck--- HHH, MD
So...Bottom line. If I've tested negative and had the cipro before I came home does my wife need to get tested or can I continue to have unprotected sex with her and never think about this stuff again?
I cannot give specific advice. I believe you do not have an STD and never had one.
HHH, MD