or maybe (going on the ghost thing here) a spirit was trapped in that living room and doesn't "like" that room being shut off like that... and is acting up to ask you to open it. i am with Mari to open it.

in your parts you should be able to find...

a Catholic priest for home blessing, as Mari suggested, OR
and Obeah practitioner for consultation and cleansing ritual

Bizi someone else also mentioned meds.
and you mentioned running hypo.
what are you taking to sleep nowadays?
when someone says "there is NO other explanation" it suggests to me they have closed their minds to other explanations.
... in this case, it suggests you aren't open to this not being a ghost.

can you do something... i dunno, go to sleep with coloured chalk on your fingertips.... see if you find your own prints....?

that is one example - what i am saying is,

can you/can others here, think of some simple, empirical tests to do, to leave some kind of a trail/trace between the acts and the actors in these scenarios....

some events, don't forget might be coincidences. i personally think the bathroom door was a coincidence, perhaps because i got stuck in a bathroom liek that once. not very new house. stupid door didn't even shut well most of the time. that time, it was like it was locked tight! i WAS scared.

did i ask you what your current meds are and doses?

~ waves ~