What does estoy trabajando y me durmien?

The phrase "estoy trabajando y me duermo" is grammatically incorrect in Spanish. It seems like you are trying to say "I am working and I'm falling asleep."

Here's a corrected version of the phrase:

* Estoy trabajando y me estoy quedando dormido/a.

This is a grammatically correct and natural-sounding way to express the idea of working while feeling sleepy.

Here's a breakdown of the phrase:

* Estoy trabajando: I am working

* Me estoy quedando dormido/a: I am falling asleep (dormido for male, dormida for female)

Alternative phrases that convey the same meaning:

* Estoy trabajando, pero me siento muy cansado/a. (I am working, but I am feeling very tired.)

* Me cuesta concentrarme porque tengo sueño. (I am struggling to focus because I am sleepy.)

* Tengo sueño, pero tengo que seguir trabajando. (I am sleepy, but I have to keep working.)

Remember to choose the phrase that best fits the context of your situation.