It is also medical.
This time is about used metaphor and onomatopoeia of headache.
I will add it from time to time.
Headache
1,"Zuki-Zuki"
2,"Head is heavy."
→To feel like can not support head with neck.
To want to put head on the desk a little time.If there is no desk the wall is fine, This state.
Also to say "zu-n".
Also to say "zu-n".