@Shoshin!
Hah!
The most notable leftover was just me trying to remain awake for an evening sitting with an extended belly full of rich food in a warm room.
how
@lobster said:
Wait ... I think I hear bells ... oops ... nothing
You're a right ding dong at times @lobster 
Shoshin1
Ha! Ya! Duh! Ga!
Crustacean seed syllables. How do you pronounce them between your mandibles?
@how
You mentioned two tiny puncture marks like spider bites, so is it possible it was a spider bite reaction ?
Have you noticed any strange abilities, such as climbing walls, tingling sensation when danger is about? 🕸
lobster
If anyone else is experiencing something similar and has any tips I would be interested.
A few good face slaps does wonders. 
I have seen and experienced severe torpor. A bowl of water in front of ones meditation cushion should stop you hitting the floor with your head. 😶 Yes that happens. 
In a more gentle way. I find it is temporary. There is usually a cause as @how mentions eg.
I often meditate with a mug of green tea. As long as drinking mindfully, it works simply ...
https://buddhism.stackexchange.com/questions/29835/managing-slaps-and-torpor-in-meditation
To put this in dzogchen perspective. Mindfulness is not something you enter or leave when meditating.
Maybe try changing your posture to a balance yoga asana or if you have a spare cat place it on your head.

lobster

As Buddhism comes westward ho ho ho ...
what will we add and subtract?
Here is my possibilities:
Add:
Remove:
lobster