TW: Addiction, Self Harm Discussion

*This is just me explaining my personal experience with pacing. If you also pace too much, please leave a comment. I would like to see if this is common.*

In high school, I used to pace for 12 hours straight everyday after school and sleep on 2-3 hours. I guess you  can tell that my household stressed me out a bit.

I now have trouble with pacing even when socializing and I think I didn't realize how bad it  actually is. 
A friend invited me over for Thanksgiving and I was pacing while we were all talking, which turned into me finding the best pacing path. A continuous circle of doorways through the kitchen, dining room, and entryway. It was mostly a friend gathering, and I was getting there after I worked and most people had eaten already, but she still asked if I was okay.

If I had to choose between pacing or having friends, I would choose pacing in a heartbeat.
One time I told someone I feel like its almost an addiction, but I worried about their response, because they knew someone they were close to that had what I deemed an /actual/ addiction at the time.

To my surprise, they asked what I would do if I couldn't pace, and I froze and thought "I'd cut off my arms." When no words came out, he told me my facial reaction of panic is what addiction looks like.

I knew that people sometimes pace in movies, but I didn't know what was normal or not with how I was raised. 

Is pacing for an hour or two the normal amount or is it like a few seconds at a time while thinking thing?

Sometimes this disorder has me thinking I'm actually going insane.

Anyone else have an atypical addiction they want to talk about?