Caffeine and anxiety causing paranoia and hallucinations?

I do have PTSD but I don't usually experience psychotic symptoms except a few years ago when I experienced a brief period of psychosis that involved paranoia and auditory hallucinations. Last week, I don't know if it was the caffeine or the anxiety that day but I started feeling paranoid again. I was teaching a student and there was this conversation going on. I felt like I was hearing it and it sounded like the student's mother and someone else. I don't know if it was really her speaking because what I heard didn't seem like something she would let me over hear. These were a couple of things I heard... (A lot of it were parts of the conversations)

"Only two years" (I've been teaching for two years), "She's been teaching him for so long" (I only started teaching him in end March), "She must be lying" (maybe they doubted my qualifications?), "even if it's free, I wouldn't want it", "all she does is say it's easy", "she's not even teaching him"

They even knew where I had studied which I know they could find out easily but I don't usually expect parents to know that much about me. Could this have been auditory hallucinations? I honestly can't tell because they sounded so real and it made me very anxious. I couldn't breathe when I got home that day and I was experiencing chest pains and breathlessness for almost an hour. Could it be from the caffeine or anxiety?

Hello wolfie205: Honestly I don't know what it is that was going on here. What I do know, from personal experience, is that high levels of anxiety can cause a lot of strange symptomatology. So what occurs to me reading your post is that this experience is perhaps a "heads-up" telling you that there is something going on with you that needs attention... probably with a mental health professional. Personally I don't believe caffeine alone could be the cause of something like this. Of course, if you're highly anxious / stressed out to begin with, & then you're consuming large amounts of caffeine as well, that's certainly not going to help. But I don't believe you can attribute what you experienced to caffeine alone. I wish you well...