I (might) have accidentally combined these mold-killers at home: Any adverse reactions?
I wouldn't be too worried about any chemicals that came from either of the products, or from reactions between the products. Any of those would have been volatile enough that they're long gone by now.

From your description, it sounds like you may be having a reaction to either residual mold or another allergen present in the trailer.

Mold is very difficult to fully eradicate. Even if you cleaned it off of all visible surfaces, it could very easily be growing behind something and you'd never know it without ripping out pretty much everything that's not glass or metal. Also, even if you've managed to kill all the most that was originally present, there could still be residual mold spores or proteins that get kicked up into the air very easily. If you're sensitive to mold, it doesn't take much for your immune system to react, giving you eye and upper respiratory tract irritation. 

If this is the case, it may be easier to get rid of the trailer. To fully decontaminate, you'd want to go in and do a full tear out of everything that could have mold on it. After you're down to bear metal, you'd need to wet-wipe everything with a good biocide, making sure that you don't spread possible contamination with your wiping cloth. The point isn't only to kill the mold - it's to get rid off every possible protein fragment that may have been generated by the mold or mold spores. 

While it's true that some people are sensitive to mold generated mycotoxins, more common is that people have immune reactions to the mold proteins, and it is not a small job to fully get rid of them.

Now, before you go full bore, keep in mind that it could also be something other than mold. Dust mites and roaches are other common allergens that come to mind. It may be worth going to an allergist to get tested for these and other common environmental allergens. You may find out that you're actually allergic to some kind of pollen (like poppies!) and it just happens that the trailer was driven through a poppy field at some point...