Lacklustre. Dull. Sad. Hurt. Tired. Teary, Hopeful. Bright. Cheery. Lacklustre. If I could draw those words as a circle, I'd do so to highlight the cycle of emotions that I'm experiencing. Rollercoaster is an apt description. And that's just in one day. I'm not sure if this is the dreaded Post-Conference-Downer or not, although I …