Can one be physically addicted to work?

During a recent 1-wk vacation to a wonderful, my body felt very "off" for a most of the time. Now back to intense working, I feel physically great. 

Has my body formed hormonal rhythms that are optimized around working intense, long hours? And upon deviations...withdrawals??

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You must take lots of pride in what you do because you derive a high amount of dopamine from work.

Feeling down bad whilst not at work is similar to your average person taking a full break from social media. 

This can be viewed in one of two ways, from how I see it:
You need hobbies outside of work or it is a blessing and allows you to grind that much harder.

Thoughts?