[gorfot]

Laziness Implies not having a 'valid' reason to do some work. I think of being burned out as being 'drained' by cognitive / emotional load to the extend that your (hormonal, emotional, cognitive etc) system is continously out of whack; which in turn affects your ability to work.

Discomfort, disinterest, boredom etc play into this of course.

That said, why not change things up if you feel so bad? make sure to include other measures to help your mindstate (exercise, vit d, therapy, social life etc). Don't see it as a single problem and one-time fix though. Wether you are burnt out or not, it's worth doing what you can in selfcare.