I just recently had a similar experience with weed and xanax. I stayed awake for almost a week straight with little to no sleep every night, with the last three nights continually edging myself into madness, I would notice that when I smoked weed I would start getting vivid hallucinations, mostly auditory but the very last night I was beginning to lose sight of what was real and what was imagined. I felt like I was coming onto an acid trip almost. Extreme paranoia, thought my roommate was planning with my neighbors to rob and beat me. I was so convinced that my paranoia and fantasies were real that I was carrying weapons around the house(not like me at all...) and even went as far as loading up my car with my most prized valuables and trucking it out to my parents for protection.
Yesterday, after all this shit happened, I had a seizure. Since I've gotten back from the hospital I've hardly smoked, maybe taken a few rips, but will pass if offered to me- which isn't something I normally do. Before all this, as in about a week ago, I was a heavy, daily smoker. Smoke weed everyday and all day. Now... idk...
it makes me more anxious than relaxed and noticed that it is much less calming now and much more unpredictable. My best advice is to lay low for a while, take it easy on your brain. Perhaps you stressed a certain part of your brain or depleted a certain chemical from your brain