1. normal, up to a point. A lot of work is mostly not enjoyable, that's just a fact.
2. depression or ADHD or something related. If you suspect that, pay a visit to a psychiatrist or a general physician.
3. you don't want to do YOUR kind of work anymore. Maybe you should experiment a little with something different? I switched recently - I was extremelly bored at web programming and switched to Android programming some years ago. Now I have a lot of more fun.
4. your nature (meaning something innate and mostly unfixable (or not?))
Personally, I usually operate in cycles: bouts of excitement and motivation where I'm very productive, then I get tired and start to struggle and half-ass some things.
1. normal, up to a point. A lot of work is mostly not enjoyable, that's just a fact. 2. depression or ADHD or something related. If you suspect that, pay a visit to a psychiatrist or a general physician. 3. you don't want to do YOUR kind of work anymore. Maybe you should experiment a little with something different? I switched recently - I was extremelly bored at web programming and switched to Android programming some years ago. Now I have a lot of more fun. 4. your nature (meaning something innate and mostly unfixable (or not?))
Personally, I usually operate in cycles: bouts of excitement and motivation where I'm very productive, then I get tired and start to struggle and half-ass some things.