I feel it always comes down to a question of whether it's effecting my functioning or not. One time i was hypomanic and planned a grand renovation of my condo and i would stay up all night surfing the home improvement site. I was gonna tear down all the interior walls and make my place into a giant studio. I got as far as submitting the project and paying for it but fortunately it never got scheduled and i got back down to Earth and got a refund before anything was done.
In that case, i feel because i wasn't sleeping and narrowly averting spending tens of thousands of dollars, it WAS problematic. I've had other times where i just really got into God and those were harmless. My warning signs are whether i'm not sleeping and am spending a lot of money. If you're skipping Group to indulge your fancies, i would say yes, that's problematic. It seems that health professionals will only involve themselves if we're not eating and sleeping tho. Eating? Check. Sleeping? Check. Next!