Jade, what you describe then is all perfectly within the realms of PTSD. Flashbacks are a symptom, and as such, flashbacks incorporate such things as: a mental image of an event, voices, seeing people as they feel right in front of you, pains, taste, smells, touch, sounds, etc etc... these are all encompassed within flashbacks. Often people have a perception that flashbacks are like reliving a movie or something, when in fact they are very rarely seen that way, more through the five senses themselves, reminders of past trauma and events. All perfectly normal with PTSD, and doctors know this... well, any doctor worth their credibility anyhow.
You will always get the idiot doctors present within society, ie. a recent conversation here about a doctor trying to tell a person they have Bi-Polar merely because they react bad to medications. When you look at the actual diagnostic criteria, more like they met one criteria for it, but this doctor believes they are bi-polar because of reactions to medications. Never once apparently does it cross this doctors mind, that medications are a chemical, thus our bodies often don't respond well to third party chemicals.
What this means, is that you as the patient need to stop believing everything doctors tell you, and instead research the facts for yourself, without their skewed antics that they somehow have developed. There isn't much information thats not available these days with the net, so even if a doctor ever does try and label you, you can research for yourself and determine whether the doctor has a clue or not, then question your doctor armed with facts, not bullshit as they seem to think patients are stupid, lesser than them or something. Education is key Jade, have no doubt, and when things get thrown at you, take it for what its worth, a grain of sand, research yourself to determine whether they know what their talking about or simply trying to feed you BS.