Yes, I truly believe you were traumatized. I have to wonder how much of the situation though was created by the meds you were on. That the staff didn't do anything, in your eyes, that means they had a different perspective. But I do believe you were scared, and I do understand your "reasoning" at the time.
Since you do feel like it's ptsd, you need to be talking with a professional for it. PTSD doesn't improve with time, in fact, it can become worse, esp as you feed the anger and feel the fear over and over, you know?

What I do know is that for anyone who went into a hospital already suffering from some trauma, then anything like this can exacerbate that original traumatic experience. It's never good.
((((hugs))))