Does sickness make you well?

about three weeks ago I developed a sinus and bronchial infection. Got on antibiotics. My crohn's symptoms stayed about the same as always. But the day after I got off the anti-bs I got a wicked stomach virus that lasted for three days. Now that it's gone it seems to have made my crohn's symptoms tempoararily better. Actually having one of those really rare painless weeks. I have a theory that since my body had so much to attack it quit attacking itself for awhile.  Anybody experience this? Is my argument realistic?

Thanks.

I'm just hoping the troops don't set up a hostile puppet goverment after the invaders leave! If my metaphor isn't very clear, I hope my immune system doesn't rev up worse than before and keep fighting itself even harder after it kills the virus! 

bronchitis likely viral. antibiotics do very little to treat a virus. antihistamine clears mucus, altho you mite get response with an antibiotic on allergen or allergic reaction. Thus you killed good bacteria in digestive tract and now have stomach symptoms. just my opinion. so what was the name of the antibiotic that you didnt need to take as you didnt mention it.