"Last night, I decided to eat an entire extra-large pizza in one sitting. As a result, this morning I woke up feeling like a human hot air balloon. Consequently, I had to wear my stretchiest pants just to fit through the door. Consequently, my friends were startled by my sudden resemblance to the Michelin Man."

shorten

Last night, I ate a whole extra-large pizza. This morning, I felt like a balloon and had to wear stretchy pants to fit through the door. My friends were surprised at my Michelin Man-like appearance.

To shorten the given passage, we can remove unnecessary repetitions and rephrase certain sentences. Here's the shortened version:

"Last night, I ate an entire extra-large pizza. This morning, I woke up feeling bloated, so I had to wear stretchy pants to fit through the door. My friends were startled by my sudden resemblance to the Michelin Man."

You ate a large pizza, felt bloated in the morning, had to wear stretchy pants, and your friends were surprised by your appearance like the Michelin Man.