How to know when you’ve officially reached OLD.  Or maybe you just have an old soul.  Whatever it is, the ‘symptoms’ are listed below.   When you use a hashtag and some nascent ne’er-do-well without fully descended testicles exclaims, “WHY DID YOU USE A HASHTAG ON WORDPRESS? HASHTAGS ARE FOR TWITTER, WHAT ARE YOU 100 YEARS OLD?!”  (Answer: yes.)   When you become obsessed with the website: http://www.houzz.com     When you can’t make it through a 2 hour movie without falling asleep even when it’s one you were really, really looking forward to.   You start calculating how much money you’d need to live out the rest of your life without speaking to anyone that annoys you.   Alcohol and good food become…