Sometimes I get speedy paranoid highs if I harvest a plant too early but letting the weed cure for a few months mellows it out. I don’t really think this is it in your case though.

To me it sounds like before you were so constantly stoned you didn’t really absorb reality. You were medicated out of your mind. Now you’re in a better place and sometimes that’s more difficult. There’s more emotion to deal with. You’re not just monotone stoned all the time.

It doesn’t sound like you’re having irrational thoughts, the world we live in legitimately is anxiety inducing. Have you tried meditating or doing whatever it is that lets you be chill with the fucked state things are in? Get high and do something rather than just vegetating. You’re the only one who knows what will do the trick. If you’re feeling like you’re wasting your life… do something worthwhile. Sometimes that’s just something simple like going on a walk and appreciating the beauty around you. Maybe it’s working out a bit. Maybe it’s fixing up the landscape around your house, or starting a garden. You gotta do something though, by the sounds of it. Vegging out will likely exacerbate your condition.