Hello and welcome to the forum.
Well done for getting away and yes you most likely have ptsd. It’s a parting gift that keeps on giving. My advice is to stop contact 100% if you can; not easy if children are involved though so if you’re dealing with contact for that reason keep it to a minimum and when contact is necessary keep it only to the children’s contact arrangements. How we react to these abusers is like they are an addiction. So the only way to stay “on the wagon ” is no contact. The further along with no contact the easier it gets but there is no magic wand to take away all the emotions, flashbacks , anxiety and the temptation to contact them. It’s cold turkey I’m afraid. I’ve been out a long time now, but I’m still not through it and am still experiencing emotions, nightmares and flashbacks. However, I’m also experiencing feeling safe in my home, feeling happy and relaxed on good days, eating and drinking what I like without disapproving looks. Being able to be me, or at least what’s left of the old me. Keep going, keep strong and keep safe. You can do this! x