Four hours sounds like a lot. But if it makes you happy and you aren't physically hurting yourself .... Overtraining would be the most likely result.

Isn't the usual question regarding behavior, "Is it interfering with, or negatively impacting, the rest of your life?"

I'll admit, the lying doesn't sound so good.
(I'm not going to pass judgement -- you will know your own behavior and situation better than some yahoo on the internet -- but you mentioned it, so I suspect it's an issue)