Should I be worried ?

Ok I know this sounds crazy. I broke up with my bf not long ago after a toxic relationship. We dated a LONG time. And it’s very hard for me to move forward. Just like any normal reaction after a bad breakup, I find myself checking his social media to see what he’s up to. It’s been 13 days since he’s even been online or posted anything. This is the kind of guy that posts something everyday. He was always super active on Facebook..but he hasn’t even been seen. Usually it says when he was online but he legit hasn’t been for a while and it’s starting to worry me that something happened. I can’t help but still care for him. I know there is nothing I can do about it.. but I hate feeling like he’s not okay 😔