I have eaten a lot recently including a massive roast yesterday, an evening meal of snacky bits that filled the plate. And a whole large chocolate egg. Went to bed felt bloated and woke up in the night and was sick several times and then had diarrhoea. Immediately felt better and feel 100% fine today. This has happened a few times in the last couple of years, it's like my body can't cope with the same (too big) portions anymore and I'm having trouble regulating myself. Obviously that's a whole other thread and is very psychological and something I need to really work on. But as a summary is this fairly normal? I'm 39 now and have no other health issues.
YABU age has nothing to do with digestion
YANBU this is normal, we need to eat less with age.