Well, in my case, it’s a form of gluten intolerance. Might be coeliac disease.
So, if you were to have the same thing as me, then try not eating wheat, spelt, barley, rye for like three days or so.
Perhaps more generally, make a list of foods you frequently eat, and then go through it one-by-one and don’t eat that food for a few days and see if anything happens.
Could of course be various other things, too, but it’s something you can control fairly easily. I’m still baffled that I never had a few days where I didn’t eat wheat in all those years.
Well, in my case, it’s a form of gluten intolerance. Might be coeliac disease.
So, if you were to have the same thing as me, then try not eating wheat, spelt, barley, rye for like three days or so.
Perhaps more generally, make a list of foods you frequently eat, and then go through it one-by-one and don’t eat that food for a few days and see if anything happens.
Could of course be various other things, too, but it’s something you can control fairly easily. I’m still baffled that I never had a few days where I didn’t eat wheat in all those years.