OP: I believe you made a wise choice.
10% of the workforce where I work were laid off sick today with flu.
I have only caught flu once in my lifetime and have taken a flu vaccine once in my lifetime. It took about 100 x longer to get over the adverse affects of the vaccine than it did to recover from flu.
F 5 ft 3. HW: 196 lbs. Primal SW (May 2011): 182 lbs (42% BF)... W June '12: 160 lbs (29% BF) (UK size 12, US size 8). GW: ~24% BF - have ditched the scales til I fit into a pair of UK size 10 bootcut jeans. Currently aligning towards 'The Perfect Health Diet' having swapped some fat for potatoes.