10-month-old cocker spaniel suddenly afraid of the living room

last night, I was cooking dinner, and everything was completely normal. my dog suddenly sat by the front door and started shaking. we brought her into another room and calmed her down. when she came back to the living room, the same thing happened

we then went to bed thinking she would be fine in the morning. this morning, she acted totally normal until we went into the living room. she ran back to bed and didn't want to leave. this repeated a few times

this afternoon, she has been totally normal and actually spent the entire day in the living room. but it just started again! she randomly just started shaking in the living room

this is highly abnormal for her, so we're worried. I have to emphasize that we have been making sure everything in the living room is completely normal—no unusual objects, neutral temperature, no new light, etc.

not sure if a vet appointment would be able to tell us anything. has anyone heard of something like this before?

edit: also worried about seizures