I use cannabis to treat my chronic pain. I do not think it effects my bipolar negatively for the most part. I've had severe psychosis while smoking, and severe psychosis while abstaining for years. I did have one doctor try to tell me it was the weed. I was impatient and they told me how many weed induced psychosis patients they admit. I think it coincidence due to people self medicating. Correlation does not equal causation.

With that said, during mania I once started smoking a ton of Sativa. Sativa seems to fuel my mania. Indica works better for me if I'm elevated and Sativa if depressed. Like I said, I use cannabis for chronic pain, but I have noticed it can effect mood. We need to be careful using it. After what you went through, it's no surprise you have lots of questions about cannabis and its role in what happened to you. I hope you receive the answers you seek. Good luck.