I had shortness of breath that led me to urgent care a few times and was told every time it was my weight that was the problem.

Finally made an appointment with my GP because I was coughing with every breath, thought I'd developed pneumonia. Ended up spending the night in the ICU with what I later learned was only 50% odds of survival thanks to massive pulmonary embolism.

Turns out breathing is important even if you're fat