Many people on this forum react negatively to the gut bacteria -theories. I understand that it might be difficult to see how a sudden crash could be connected to a gut problem. However it is known that elevated cortisol levels have an effect on digestion: todaysdietitian.com/newarchi … 9p38.shtml
“Imagine what goes on in a cortisol-flooded, stressed-out body when food is consumed: Digestion and absorption are compromised, indigestion develops, and the mucosal lining becomes irritated and inflamed.”
I also have problems with digestion, and I think they are linked with my cortisol problem. I tend to wake up in the middle of the night not feeling at all tired, probably because for some reason my cortisol levels increase during the night. This has been a problem ever since the crash in 2013.