It could be anything or a combination of things. Maybe your antidepressant is not right. One for you or the wrong dosage so that could explain why your still depressed. As for falling, definitely talk to your dr. I , myself fall a lot. I think it's due to dissociation and fibromyalgia in my case. It sounds like
you are dissociating but only a dr and or therapist or maybe both together could determine what's going on. I'm sorry you're having such a rough time. I'm very glad you are strong and doing what you need to to so you can take good care of yourself. May angels surround you.