I remember that period in my quitting process very well. I think I posted about it at the time, though I can't remember where. It was like the momentum of quitting wore off and all that was left was a blah feeling. It was around that time that I really realized that there would never be any smoking again. I "knew" it before that, but I didn't really know it.
I also get really stressed out by family time (and spending time with my husband's family is even less relaxing) but I try to remind myself that at least I am not experiencing the double stress of craving a cigarette and trying to find an excuse to sneak off long enough to have one. That was always the worst -- some episode would occur (usually involving an argument with my dad, or having to watch my husband argue with his dad without knowing whether I should get involved or just let it run its course) and all I'd want was to smoke but I wouldn't be able to. At least now I just have the one stress to focus on. And I firmly believe that holidays with the families are why the good lord gave us gin. :)
For me the blahs passed pretty quickly. Within a few days of acknowledging them they had lifted. Be nice to yourself and wait it out. I bet you feel better soon.
