How can i digest food when im chronically stuck in survival mode

I have done no research on this subject , (not my top most priority, i have a billion other things to worry bout)

But from what i have heard on social media(bad source ik)

When we are in survival mode, blood is send to more important parts like the heart and brain, Due to The release of adrenaline , which is a evolutionary thingy which help you to act fast, survive

Blood diverts from less imp parts like , we do not need to digest food when ur in a fight for example. So blood from abdomen, fingers, toes, hand, feet, gets diverted to heart…

In case of a fight situation(life or death), its temporary cuz , the fight eventually ends

But the mental fight never ends, it probably needs to be managed or stopped like with meds.

Also the body remembers and keeps scores, even when your mind in in a better place

Result: your hand and feet are always sweating and/or cold, you have digestive issues,ur malnourished, rbf, you have “bad” posture issues, 

Like a defensive posture , always ready to be attacted, always ready to protect ur internal organs like ur heart and lungs, aways curled up, having legs close to the chest when sitting, or hunched over guarding ur rib cage

These are evolutionary stuff , they sometimes have nothing to do with ur trauma , but ur body prepares itself for a attack 

Sometimes people and doctors try to treat the wrong cause 

So yeah my stomach is having a bad day