Not sure if you saw this link or not, but it's a good one on PAWS - see if it rings any bells for you.
http://digital-dharma.net/post-acute...r-immediately/
some good ideas on managing it too.
just an aside - I had a lot of aches and pain abdominally too in the immediate post quit period - I was *convinced* it was my liver - turned out my liver was somewhere else than where I thought it was.
A blood test revealed no liver problems
The aches and pains subsided in time - hang in there
D