I am 15, and never had anxiety to this degree. It probably first occurred about a week after i got high for the second time. And yes its anxiety when I am not high. And i tried getting high the other day to see if it would help the anxiety. (I hadn't smoked since i got the anxiety) While i was high, it did tend to stay out of mind but if i thought about it would come back to me. And the anxiety happens whenever I think about certain things, which tend to be deep topics, like why we are here and how everything even makes sense. Its wierd i know
Actually it's not that weird.
I don't think any of us can 100% give you your answer BUT the fact that the anxiety occurred for the first time EVER to that degree after you first smoked weed DOES make it a factor.
As someone who smoked TONS of weed I am of the personal opinion that even on days I wasn't smoking my anxiety levels were higher due to how much was in my bloodstream.
I can't confirm whether or not that is actually possible, but all I know is that I was more anxious during periods I was smoking even when I WASN'T high than during long periods of abstainance as there were long periods where i didn't smoke.
One thing that studies have been saying, and I'm not sure they can 100% PROVE it but it seems likely, is that weed use can effect the developing brains of early teens.
I first smoked at 17 and didn't get heavier till around 19, so I'm not sure if it effected me as much, but at 15 it is possible it could have an effect on how your brain develops, though in what ways I can't say.
I certainly think it can't be discounted as a FACTOR but I don't know if we or even your therapist can 100% say it is the ONE AND ONLY CAUSE.
I think the best way to know IMO might be to try to go a month without smoking and see if you get the anxiety again in the meantime.
If you don't, try one more month.
If in 2 months of smoking you don't get the anxiety then that could be a strong indicator it was the weed.
But if it KEEPS happening in those 2 months I would have a hard time believing it is the weed but still...you just never know.
Unfortunately it IS true that weed CAN bring on anxiety disorders and other issues sometimes.
I have really bad generalized anxiety disorder and smoked TONS of weed when I was young and I can't deny it IS possible I might not have anxiety or AS bad anxiety if I had never smoked.
However, I actually believe Caffeine has had a WORSE effect on my anxiety and my most major panic attack was almost directly cause by caffeine but also during a period of weed use so both were factors.....that's not important for you to know, just trying to say weed's not the only drug that can cause anxiety.
But...in reality....it's NOT IMO far fetched that anxiety disorders can be brought to the surface from smoking weed that MIGHT be able to last beyond the point of getting high.
Honestly, I would be careful if I were you.
I always LOVED weed but it's not worth getting an anxiety disorder over.
Try to go without for a while I think and see what happens.
If your anxiety goes away I am not sure it would be such a good idea to smoke a whole lot more in the future as it might be causing it, but i just don't know man.