Every time after eating i feel nauseous, irritated throat, stomach irritation, weak and fatigue. its like everything i eat is not settling too well on my stomach. its worse when its red meat than when i eat chicken. also an acid irritation. ?

Stomach is upset : Sounds like you have gastritis or gastric reflux. The stomach is normally supposed to have a strong acid to digest food. When the lining of the stomach is damaged by alcohol, NSAIDs, or bacterial, the acid causes pain. Here info for a diet https://www.hopkinsmedicine.org/health/wellness-and-prevention/gerd-diet-foods-that-help-with-acid-reflux-heartburn See a doctor you need a good evaluation.