Emotional Withdrawing

Hey guys! I have some issues with emotional intimacy- when it comes time to talk or if something comes up I shut down pretty much completely and either go full ass-hat or I become a brick wall. I suffer from panic/anxiety attacks so I imagine they're linked. I was just wondering if any of you lovely ladies experience the same thing. I don't mean just romantically, I mean in platonic relationships as well. (I also don't cry easily although I wish I did, it'd make things a bit lighter on me I think)