Sounds like being burnt out. Which in turn leads to depression and all the negatives that go with it. "Programming" is a very broad category. Since you enjoye

Sounds like being burnt out. Which in turn leads to depression and all the negatives that go with it. "Programming" is a very broad category. Since you enjoyed CS and working on problems at university, there could be specifics of your current work situation that are stressing you out. You could analyse your situation and identify which aspects are stressing you out. Is it the technical issues, the management's expectations, the lack of peer support, the constraints of the environment, etc? Once you have identify what specifically causes the stress, you can plan changes that give you more of what you like and none of what causes you stress. And, yes, there is more to life than programming.