You had to go to the doctor because you got too high and freaked the fuck out and then eventually had to stop. Clearly you can't handle your shit anymore because you freak out like a bitch. Have fun with yoga.
And weed isn't necessary but it's definitely an enhancement.
Panic attacks can happen all the time, it's not uncommon. I know you're the extreme badass pothead of the thread and all, but acting like an extreme badass pothead makes you seem like a fag.