Anyone else who experience headaches quite a lot in the evening or right after work?

I work a desk job kind of work and paperworks can be quite a lot but it has managed to keep me engaged throughout the day. I'm typically not the type to be forgetful or easily distracted especially since workmates are a good source of body doubles.

But the afternoon crash is so bad and I get headaches. Im not sure if its because of too much focus and masking.