Symptoms all in your head, or in your gut?
Maybe a little of both.
"We are converging neuroscience, molecular signaling, and micro-nano devices and systems. This enables us to measure and investigate data at the interface of each junction of a simulated GBA platform, cell to cell, cell to molecule, molecule to nerve, and develop engineering methodologies to analyze and interpret it."
https://phys.org/news/2020-10-symptoms-heador-gut.html
Paper: