>>305427Sooooooo…
You say you feel pain *somewhere* in your abdomen plus *somewhere in your chest*. One can assume your body generates pain in some natural crevices of your food processing system.
Doctors and tests… can only assume: most common toxins and bio-hazards. You probably should try switching rooms within your house or try spending a day in an inn.
My another guess is - one of many - you may have a bad reaction for some common or semi-common food. Do you drink milk? Eat cheese? Mix whey? Some weird bacteria in it from your local food supplies may trigger your *super-sensitive* receptors no one else in the area has.
Another guess is, you have a "mild" allergy for some food that you eat weekly or bi-weekly yet which lasts. I am not experienced in battling food allergies so I can only assume.
Another food-related issue may happen if, for some reason, it hurts to process meat due to some kind of infestation transmitted by ticks. If you ever try going full vegan, though, make sure to get some supplements that have B12 vitamin and digestible iron.
Another random guess is, it's a manifestation of auto-brewery syndrome, but that's a wishful thinking of mine and nothing more :)
If you eat "slightly spicy" food, your gut may feel the burn even if your tongue does not. No doctor understood my issue until I abandoned the spices for an unrelated reason (the 'rona made me reconsider getting my fav spicy sauce and it stays that way since)