All I get is severe Couchlock and the 'thousand mile stare' (yes yes, full metal jacket).
My hearing gets fucked up too when I get that, exactly the same as what happened to you. Conversations seem to get dampened but 'random' sounds like cups on the table surface or keys/Money falling to the floor, a cat scratching something ... all sound so clear and loud.
I usually snap out of it when I see one of my mates' face hanging in front of me going 'Nick,Nick you okay?'
I'll just blink my eyes, shake my head and go 'wow, nice trip' haha

