Knocking sound ??

Hey guys, see if you can help me with this:

I have D2’s and im getting a knocking sound coming from the rear passenger side shock area. It almost sounds like the shock is bottoming out, but I would think thats impossible since the shocks are not older then 3-4 months. Makes this noise when I go on bump or something , and it can be something minor. Has anyone encountered this problem, or pontenially have any ideas on this?

Thanks