I just want to let you know where I am coming from. I am not against the use of mj. Every psychiatrist I have known has not only been fine with the use of mj in their patients, they have actually suggested it. I am told by them that they sometimes ask a patient to withhold mj use for a variety of reasons. I had always been very much against the use of mj, especially when psychiatric issues were involved. In attending many of the educational seminars put on by the state and by the local teaching hospital, I have changed my stance on this.

Every medical specialist I have seen knows of my psychiatric diagnoses (and the history). Every one of them, and there are many, have strongly (and repeatedly) suggested I use mj , stating it is much safer than are medications. They each, too, have shifted in their understandings and in their recommendations to their patients.

I do not know if this is the best approach for everyone. It is definitely the way medicine is going where I live.
My doctors are strongly in favor of discovering individual responses to mj use and making individual decisions accordingly.

I do think it makes sense that mj use can confuse both the practitioners and the clients when trying to make an accurate diagnosis.
I also agree that using mj might, in some cases, make treating mental illness more difficult. However, I do not think it is harmful to everyone with a psych illness.

Just my own stance on the use of mj.