I was developing an Android app during college training. I made the app in three days, actually, three nights.

Three consecutive nights of only coding had its toll on me. I got burned out.

I couldn't even look at my laptop. Every code I looked made me want to throw up. That's how much burned out I was.

Well, after three more days, the feelings of throwing up receded, and I was back on track.

This was my second worst burned out experience.