I get anxiety when I smoke and am way too young to attribute it to any sort of “reeder madness” - so it’s definitely a thing. I don’t smoke super often, and don’t always get anxiety when I do, but it definitely gave me terrible anxiety when I was younger.
If anyone else gets anxiety when they smoke, I recommend smoking sativa instead of indica (nicknamed “in da couch” because of its anxiety effects). I was given the tip from a stoner friend, and it’s fsirly true in my experience.