The answer to your question is Zanax.

"Zanies, Zanies, Zanies!!!".....

I always keep some on me just incase the "little anxiety monsters" creep into my bag of weed.

Mostly you just gotta chill though...It's all in yer head man.

It's harder for some folks than others. this usually occurs as you get older and carry on more resposibilities in your life. You start thinking about all that shit and when you get baked, it all tends to come to a head at times. Just chill!!