I never really thought about it much before but since I sit a little for meditation both before and after breakfast (for no particular reason) I’ve started to notice a huge difference in how it feels.
Before breakfast the full lotus pose is just fine. I can sit pretty long even without being bothered by very much. Eventually my feet will get a little numb but even that will pass if I wait it out.
After breakfast it’s soon quite uncomfortable. It’s like the feet pressing on the thighs creates a tension in the upper body. It’s far from relaxing and doesn’t work as a meditation pose. Virasana is just fine after breakfast.
Of course the thing to do is to not sit in full lotus after breakfast but I just wonder what’s going on physically.