Thanks, i found my error, i was watching a entire forum instead of a thread, and at the same time i was watching same users of the same forum; so i got a bit of confusion from the alert origin.
i messed up , and instead of watching same threads, i put on watch new posts from a bunch of users, getting ton of alerts (email disabled until i fix this).
I cen't find a way to unwatch them , can you point me to the correct way?