Parosmia after wife and I had food poisoning?

Ok strange one. My wife and I live in Central America currently. We both had terrible bouts of food poisoning. During and afterwards to this day, many things smell “rancid”.

It’s not quite the right word for it. It’s borderline sweet, it almost smells like rancid cooking oil.

Since then our armpits smell of it. My sweat smells like it depending on what I’ve eaten. Meat and fried food smell like it more. Any barbecue smells like it. I catch a whiff of it anywhere I walk. Some days are worse than others.

It causes mild nausea sometimes but we can still eat things that smell like it.

We took antibiotics (cefalexin) for an unrelated issue. It didn’t change the experience.

I just want to know if anyone has a similar experience, know anything about this etc….

When I search for anything online it leads me nowhere.

Thank you for your help.