Not weight lifting for awhile and then trying to lift in the gym is a big slap in the face. It's so humbling and embarrassing.
That hardest part is getting back started. Once you get into the routine again the addiction sets in. Since July 10th I've gone to the gym everyday except 4 days. 2 of those were travel/flight days. Before that I hadn't gone for a month due to traveling and being on the road and coaching.