Evie, its simply not how PTSD works, hence why you will see very little of choice one selected. Yes, you have to account for where people lay within their PTSD journey though, ie. got PTSD and got help immediately, so someone may only get trauma related hallucinations, which is generally viewed under flashbacks, and flashbacks "are not" restricted to trauma alone, but can include anything the mind see's fit to strike upon oneself.

The longer a person has had PTSD untreated, the chances are quite high they would have endured hallucinations of various kinds, though simply do not admit too it suspecting they could be locked up and the key thrown away. People still just don't get how much stress plays upon our mind...

For those that forgot where it is, must read Stress on Your Body which I now made sticky in the PTSD news forum for ease of finding as its a popular thread. PTSD is extreme stress, and when you read, learn and understand that thread, you will understand the issues and dysfunctions associated to ourselves that stress is the major attributable factor. It lowers our immune system, it shuts us down, it burns us out, it makes us see things that don't actually exist, it gives heart attacks, liver and kidney failure, and the list goes on and on. PTSD is the extreme end of any stress related action basically speaking. Your mind and body is under extreme stress when uncontrolled, high stress when your moderating your life, and a little above what would be classed as normal stress when managed.