hahha.. well, it probably is a withdrawal related tick.
How annoying!! I'm happy for you that it's the only tick you have. I'm no doctor but I remember all kinds of weird things happening to me that freaked me out. My stomach would NOT stop growling... and it was loud! I was sure I had finally burnt my poor stomach out with all the tequila and scotch whisky!!
Try to relax behind your clean time and feel very very good because you've gotten past the worst now... That pink cloud should arrive over your head any minute now and you will feel good beyond imagination!!!
Congratulations on your 10 days.. time for a little exercise maybe? I know the more I think about my eye twitches the more they irritate me!