Hello convalescence: I'm sorry to read of this terrible experience. Having spent time on a couple of psychiatric wards myself, it does not necessarily surprise me. I'm certainly not in a position to judge as to whether or not you are experiencing PTSD as a result of this experience. But it certainly makes sense to me that it is going to take some time to get over this. I hope that you have some way of talking through this, either informally or via therapy. It will be important to do so, I would think, so that you don't continue to turn it over-&-over in your mind. My best wishes to you.