The pertinent question is whether you've really already found cannabis successful for treating your anxiety. If you have, then it sounds like you'd be a good candidate. I personally believe people with anxiety need to be uniquely careful with cannabis, particularly in light of the fact that you don't live in a state where medicinal cannabis is yet available. Decriminalization is one thing. Real medical availability is quite another, particularly where treatment for anxiety is involved.

Unless you're growing your own or obtaining it from someone who does, the cannabis you get on the street is likely to be sativa-heavy and heavy on THC. The high THC content is considered desirable for its psychoactive effects, which is why that's what you're more likely to find from illicit sources and street dealers. Unfortunately, the THC is also what can aggravate anxiety in many people. It can also bring on other psychiatric symptoms in some vulnerable people (delusions). If you read the threads in this forum, anxiety and panic attacks after smoking are fairly commonly reported side-effects.

One of the other cannabinoids, cannabidiol, or CBD for short, does not have psycho-active effects, but it's the ingredient that seems to do good things to lessen "aggravating" effects of THC that can occur in some patients. CBD is also the key anti-inflammatory ingredient that is particularly helpful for other medical conditions. Scientists who've looked at the effects of cannabinoids are fairly certain it's CBD that ameliorates, or lessens, the effects of THC and helps make it more easily tolerated. They and the dozens of other cannabinoids, some of which don't even have formal chemical names, all work together in interesting ways.

All this is a long way of saying be very careful about trying to treat anxiety with street-bought cannabis. You really need to be in a real medical state where you can get a recommendation and go to a dispensary and find a strain that's helpful for anxiety. Or you need to grow your own or get your cannabis from someone who does. People who treat anxiety often find that Indica-dominant strains, which tend to have more sedating effects, work best.

I'm not sure what sort of doctor you're working with, but I'm always skeptical when I hear someone not believing patients who've been through traumatic events and are having nightmares and flashbacks or assuring them they do not have PTSD. I've been treated for PTSD myself. I used to be a paramedic and saw several really traumatic accident and injury scenes. They definitely stick with you! I was treated with a technique called Eye Movement Desensitization Response (EMDR), and it worked beautifully. Nowadays professionals are realizing that more and more patients suffer from PTSD than previously believed. It's quite common among paramedics, battlefield medics and veterans of combat, among others. If your doctor is not believing you, find another!

Good luck to you! My heart goes out to you. I know anxiety isn't easy to deal with. I struggle with it myself. These days it's medical school that stresses me. If you're into holistic healing, try the most holistic approaches of all: exercise, meditation and guided imagery/breathing relaxation. Those really do help.