Had a panic-attack from smoking weed think ive developed anxiety

I`m a 20yr old male, don`t smoke cigarette's or do any other drugs just smoked weed for the second time that night and ended up getting rapid heartbeat that scared the c**p out of me, and for some reason i lost control of my body like i could only watch as it walked around on it`s own while hallucinating that a shadowy figure was trying to kill me when in my mind knew wasn't really there also while this is happening out of the blue i just feel like hurting the people who live near me which is just screwed up, i eventually make it back to my house and end up puking into my sink until i pass-out.

So here are the after effects that i am still getting and ones that have went away.
.the feeling of hurting friends, family and strangers physically whenever i`m near them which upsets me and i feel so guilty about
.my hands left hand/wrist kept shaking for the first 2 days
.my mind felt slow and my head felt cloudy/drowsy like lasted about 2 weeks after-wards
.feeling i may have a panic attack again
.thinking somethings wrong with me
.feeling like i`m stuck in a dream and need to wake up because the world i`m living in is fake (this came out of nowhere around 1 month in but it`s gone now)
.not wanting to get out of bed, speak to anyone go or do anything because im constantly worrying
.i still get this terrible headache that won`t go away that hurts around the front an top of my head which also hurts just above my eyes giving me blurry vision

I have no idea what`s wrong with me i`m hoping anyone of you could tell me or give some advice on how to get over this, also im just waiting till monday so i can make an appointment with my local doctors and see what that have to say.