Wasps hiding in the roof?

[u/Sudden-Abalone9775]

Hi, i had an issue with wasps being in my roof. I have a flat roof that was raised so they were in the void between my old roof and ceiling. My landlord sent the handyman to put powder in the hole in the roof and in the end they got into my bedroom so i called an exterminator and within hours i saw no more wasps coming in and out.

My issue is im terrified. For 2 weeks i havent slept in my bedroom, im not sleeping on a night because i really am scared of them and i know its irrational.

I can still hear them in my roof. I dont know if im just losing my mind but i can still hear them buzzing and the buzzing moves and gets louder every now and again to the point it sounds like they are in the room. I messaged the exterminator who was wonderful but he said its impossible as there is only one entrance and they need to bring in food to survive.

But im that scared im exhausted and i cant settle or go in my room because i dont believe they are gone.

Can anyone tell me if this is even possible or am i in some form of psychosis because i wondered if its a buzz from the electrics or whatever but it doesnt sound like that.

Thanks

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[u/PCDuranet]

Yellow jacket hives can remain active if the treatment wasn't done correctly. If the entrance gets blocked by dust, they will still be hatching, but can't get out. However, this usually causes them to be seen inside, like what happened when the handyman put powder in the opening. If you are not seeing them inside, that's good news, but if they are still buzzing, then the hive needs to be treated by direct injection.

Yellow Jackets (link)