I think medicating oneself is very personal choice and requires a doctor so I won't comment on that but the olfactory flashback comment interested me.
I used dissociation as a form of living until I visited therapist a year ago. I did not even know I had that. I can tell you one good thing for me is I definitely did not age as fast as I am now that I am learning how to contain feelings. I lived in complete "turn it off" all my life and nothing fazed me but the downside was more obvious - no continuity of good or bad or any feeling.
In dissociation I stayed young cause nothing stuck. Living more fully, I am learning things do linger a bit more but everything the good and the bad...I want the good to linger more and learning how to release the bad...but I digress!
So that is my experience of dissociation.
When I joined therapy, and I started to contain feelings consciously,I tried to become conscious also about what triggers my dissociation, I started to have auditory flashbacks. It was crazy! I mean really scary. The first thing I did was stop drinking altogether because it really exacerbated my symptoms and because I am not dissociating,and everything was coming up, I found alcohol, violent/disturbing movies and certain human voices all so jarring. I went cold turkey!
The auditory flashbacks was because I grew up extremely chaos family and I had a lot of siblings, guests, people handling us all over!!!!! it was like there is a bazaar in my mind. After stopping drinking, I started to listen in meditation and it finally sort of itself stopped.
It has been a year since I had a great glass of wine recently and so much better.
All I can say to you is this, having these weird sensory flashbacks are scary. I did a bit if research about how they develop too to understand how far off could I have memories in these area and they develop quite early...I think auditory is second to touching and before vision and olfactory senses if I remember correctly. This helped me because some of the sounds or the feeling of sounds I had made no sense so I thought maybe they were before I was born.
I stay sober to investigate and it paid off for one year.
hope my story helps you in some ways but I thought I will share. I think your therapist cares about you deeply to recommend a doctor but only you can make the decision.