YES!!! you could be spiraling down and think you are straight and level, your senses play tricks on you in a cloud!
...
It’s called a graveyard spiral. It’s possible to recover if the plane or helicopter breaks through the bottom of the clouds with enough altitude, and the pilot knows the proper technique.
JFK JR incident was similar in that he was using sight and got disoriented..or some such thing.
Or the pilot actually reverts to instrument flying when IMC and glues his eyes to the instrument panel.
let me ask sort of a morbid question.
If you are in a graveyard spiral would the passengers likely be disoriented as well and have no idea they are going to their death? Might provide some comfort to the family of deceased......