This is an article from Cracked, and the language and ideas are blunt and unpleasant, with triggers.....
One day I woke up with what felt like a flu, and it wasn't until I got some more dope to "help my flu" that I realized I was "junk sick" -- the term users have for the early stages of withdrawal. It was after that -- after I was addicted -- that I turned to the needle. Once you're at the stage where you're even considering the needle, you long ago forgot about "squeamishness" right along with "work" and "everything else you ever wanted to accomplish in your life."