Posts, comments, etc., disappeared from my activity log. Please read?

[hyborian]

OK, so I log on to my account, click on my profile, then I go to 'activity log,' that shows all my comments, likes, posts, etc. I just checked my activity log, and I have about a 1 1/2 years missing from my profile. From January 2012, up to a few days ago are missing, everything is missing. However, my posts on my timeline are still there from January 2012, to now.

Any suggestions as to what has happened?
Edit: The information is just missing from my activity log, nowhere else. I still have my posts and comments from January 2012 to now, but the information is missing from my activity log.

[Smiley]

Sometimes it can be that all those post were deleted or maybe there is a bug on facebook. I think you should just wait a couple of days.