i smoked weed and got a panic attack

i smoked weed a month ago , and got a panic attack. the next day i was fine but then got the panic attack again because of the fear of getting the attack again. i was feeling dizzy, had trouble breathing but then started to get better . now i feel fine but whats effecting me now is my eyes and feel. i can't focus on things and tend to daydream alot and i see things in slow motion. when i move my hands it looks like im moving slow. it feels like life is moving slow and i just don't know whats wrong with me . i don't know if its depersonilzation diorder or anxiety but i just hate it and wanna cure it. help...