In the nicest possible way, you're not a doctor, and you can't just suddenly decide you have an allergy to wheat. Given that you 'decided' you were allergic to wheat then ate some bread, the baguette reaction could have been psychologically induced.
Go see your GP. It takes less than 5 minutes to draw some bloods. Should take about 2 weeks to get your allergy test results, and then you'll know either way for sure.
There is no point cutting out foods from your diet if you're not allergic to them.
Seriously. An allergy test is quick and practically painless. Just have it done.