I still think that at nearly 4 years.
However it crosses my mind once a month rather than everyday now.
The people at meetings......maybe they where just further along in their disease and you have done something about it before you got to the point they are at.
Your AV will be good at sending you messages like 'no way have you got a problem. How could you have if you have done 15 days?'
Don't listen to it.