Hello I believe I can help you with your concern
I am so sorry that you are experiencing this, I can imagine how distressing this must be for you
I would like to ask you a few questions, to get some more information, so that I can better help you
May I ask for some details about the content of the flashbacks please?
Also when exactly did these "terrible flashbacks" start to occur?
These events in the flashback, would you consider it good or bad?
Okay and you mentioned 9 months ago is when they started, did anything happen to precipitate these flashbacks that you can think of? Stress? Unfortunate event recently happen to you?
What did the doctor say when he/she checked you over? Did you have a brain scan too?
Because sometimes seizures can cause these types of flashbacks and that is why I am asking
Okay well there a couple causes for these flashbacks. First off the flashbacks are specifically called Involuntary Autobiographical memories. Since these memories that you are having are not good, most likely they are related to a traumatic period of your life. The injury to your head and the stress of your life can cause a type of Post-Traumatic Stress Disorder recurrence and the flashbacks are actually repressed memories that your subconscious tried to bury deep within your mind to protect your conscious.
Another possibility is that the injuries and falls were caused my mild seizure activity in the brain that can trigger these types of flashbacks, a common seizure disorder that can cause this is epilepsy.
I am leaning more toward the PTSD recurrent reaction because of the "not good" nature of the flashbacks that you mentioned and the dissociation that you experience while in a flashback episode.
The head injuries could have caused damage to your long term memory center in the brain and that is why you are having these involuntary autobiogrpahical memories that are fragmented.
This is my most head injuries require a CT or MRI scan to rule out any Traumatic Brain Injury (TBI).
Even the mildest of head injuries have been known to cause damage to the brain, it just depends where the damage occurs in the brain, if there is any damage.
Well I want to give you this great and thorough research article on the nature of autobiographical memories that may shed some light for you.
Also what anxiety medications are you specifically taking?