I’d have to go check the dosage I take of NAC, I think it’s just 600 mg, but I have to take it in the morning before 11 am, or else I have even more wild dreams than I have regularly without it. I’m not sure I what it is, but for me, it takes my vivid dreams from a 9 or 10/10 to a 14+ if I take it in the late morning. The closer I take it to bedtime, the crazier my dreams get. There’s zero way I could handle it if I took it 3x a day. I admire you though. I just wish it didn’t affect me this way.
That’s too bad about the dreams. I’m fortunate to get no adverse effects whatsoever.
It’s possible your brain’s level of glutamate is already high enough and NAC is raising it to a dysfunctional level.