I'm confused. is there a wasp nest in my bedroom?! 
woke up to a loud buzzzzzz. something behind my blinds bashing itself at the window. it eventually made its way to the glass at my bedroom door (goes to a small balcony) so I opened the door to let it out. it was a huge angry wasp. I briefly thought 'how did that get in my room' because the windows and doors have been shut. I've been away for 2 weeks and only got back yesterday.
BUT then I noticed on the floor by the door 2 dead dusty wasps. who I assume had been trying to get out the glass and had just given up and died on the floor beside it. while I was away.
so...how the fuck did they get in? surely if there was a nest somewhere in my room (typing this is making me shudder) I would hear it?!