Im in therapy for anxiety& PTSD. I have been getting worse. I feel like I'm in a dream and depressed. Is it normal to feel like this once you start opening up about your past after holding in for years?

YES! This is normal! I have anxiety and PTSD. Hi! You're not alone. I like you. When you hold in the past, you don't have to deal with it. Things get worse before they get better. Opening up will make you actually have to deal with your stuff, which is exhausting and depressing. But! It gets better. I promise it does. It sucks. It really sucks. But. Imagine a stuffed closet. You just opened the door and ALL the junk fell out, all over the floor, all over you, everywhere! It's a mess. You and your therapist will work together to pick up the junk, toss some out, organize what you can't toss, and generally make the closet something you can live with. You have to feel and work through the emotions before they go away. It sucks, but it will be worth it. Things will get better. You're doing well - much better than you feel you're doing. I promise. It gets better. Work through it. Keep at it. This is normal, but temporary. Things will get better.