I work as a consultant and I just got back from sick leave 2 months ago because of a "burnout". Too much stress, too much anxiety, unbalanced diabete, trying to prove myself and get a decent raise. I was working 10h+ a day, 6-7 days a week, basically 60-80h a week. I did that non-stop for almost 2 years. It was to the point that the only time I was seeing my girlfriend was when she was asleep.
I came back home to my girlfriend one evening exhausted, it was like 10PM or close to, my phone rang as I enter my appartment. It was my boss asking me to go somewhere to hookup Internet the following morning at 6 and I needed to be there at 6. It was 1h30 away from home. so I had to leave at 4:30AM. I hung up on him without saying anything, looked up at my girlfriend and I started crying. I knew at that moment that I reached a breaking point. I went to the clinic the following morning, explained my situation to the doctor and she put me immediately on sick leave. I was stopped for 3 months.
I felt so guilty for leaving work, people made fun of my situation at the office because, you know, you are "weak" minded. The first month, I literally slept 18h /day. i had to take anti-depressant because the doctor was not sure if I was suffering depression or just burnout. Even after the 3 months I was feeling that I did not completely recover but bills were starting to pill up.
since I came back, even if my co-workers are still making fun of me, I'm now doing 40h /week and that's it. I'm feeling much better, my relationship is going well and my health is back. TL;DR: Don't overwork yourself and stay healthy. You got only one life, make good use of it.