Bouquet style TGY (this should be the tea you drunk) has a strong cooling nature in TCM terms and you probably got tea drunk! It is always advisable to eat something rich in sugars after a gong-fu round of such teas or even in between to prevent it. I think McDonald food is generally richer in fats respect to sugars (unless you ate McDonald icecream or drunk a coke) so this could be the reason why it didn’t work.
Anyway, the headache is also a common condition after a sleepless night. If you do not normally use to drink so much tea, your night could be not very restful so that your headache didn’t benefit of a refreshing sleep.
I hope you will resume soon 🙂
