Matt you look just like my mate. He used to train through his twenties, was massive, then stoped training when he hit 30 had three little girls, got married etc....
Anyway he looked just like you flabby bits around but you could tell he used to be a lifter - traps and width give that away. He started training again and within 6 months he was looking good again - not like he used to mind, but it still came back quickly.
Its just a case of gettin your ar5e in gear fella - i'm sure you'll be fine...
Ditch the choc for raw eggs!
Good luck
