maybe Mania and Bipolar disorder are a bit.... far fetched
You won´t believe how many people suffering from these neuroses.
These are no "real" disorders, but more or less "obsessive features".
The key is always:
Don´t take it / them / yourself too serious.
Sounds too easy, but that´s it.
Edit: Example:
Im afraid i cant stop ,
I feel sick when i dont do this.
You WANT (!) to feel sick (your subconscious mind wants to feel sick when you stop coding)!
Seriously, don´t take it too serious.

You won´t die if you stop.