When I was addicted to a drug I didn't even realise. Which I'm sure sounds silly to anybody else, but at the time I was taking medication prescribed by my GP, I wasn't abusing it - I never took too much, or too frequently, or anything like that. I was taking it legitimately for the condition it was prescribed for, and every month I got more and was never questioned.
Then one month I miscalculated, and ran out on a Friday but couldn't get my new prescription until Monday.
Th worst bit was the leg pain. It was like I had to keep moving my legs every few seconds, but that only brought a tiny bit of relief. I could barely sleep because of the restlessness. It was like my bones were itchy and my legs were on fire.
I couldn't eat anything, because I just couldn't. I was very fidgety and couldn't sit still - I'm copying some of this from a post I wrote on a different website at the time, and by the time I'd written 8 sentences I'd already fidgeted 20 times. My brain was muddy and I couldn't think. I was basically watching Arthru all day, as each episode was short enough for me to be able to follow. I had a new book that I wanted to read, but I was unable to follow the story.
After 4 days I finally managed to get out of bed, make dinner, and do the washing up.
So my story is more of a story about withdrawal, but part of addiction is that the withdrawal sucks so you want to take more drug to avoid the withdrawal. If you take the drug, you know all the bad things will go away for a few hours. So you want to keep taking, and keep taking, and keep taking.