by Jasonian on Fri Jun 22, 2007 1:02 pm
Honestly, it really depends.
On days when I had to work until 3am, I'd start to get a really massively painful headache right around midnight... when everything closes, and there's no coffee in sight. Those times were horrible, and they only came when I didn't have some coffee before going to work.
The catch, is that I've noticed that it only ever happens late at night. I can go an entire day with no withdraw effects if I'm in bed close to midnight.
Like Dan, I'll often go without coffee rather than drink bad coffee. I usually keep some painkillers in my bag when I travel, though... just in case.
If I'm in an inexplicable bad mood, coffee always seems to cheer me up, but I'm not entirely sure that's caffeine, or even drug, related. It might just be because coffee makes me happy.