I feel so unbelievably tired

I don't know why, but i just feel sooo tired.
This morning i went to an employment agency, to see if had some work for me, next i've been to the pet shop buying dog food. 15 kilograms! Pff.
After that i've been to IKEA, to buy some boxes and to have the cheapo 2€ meal.

And now i'm tired like i ran three marathons.