After smoking weed yesderday(planning to stop) I had a random anxiety attack that brought my heart rate up and freaked me out a lot. Ever since yesterday I have been fatigued from the intense anxiety and have a strange pulsation in my head of dizziness, every time I stand up or move any head muscles around abruptly. It's different from a heart pulse and almost feels like an electrical shock of dizziness that only lasts for 1 second or more per time.