Grammar help

No.
People are saying yes only because both are adjectives, but this is bad reasoning. That question asks for a very specific kind of adjective, otherwise you could answer "I am X" where X could be all sorts of ridiculous things, e.g. "I am red", "I am single", "I am existing", "I am interesting", "I am American", etc.

"I am seated in an office, surrounded by heads and bodies."