Headache Back Of Neck Pulsing Headache In Neck And Back Of Head From Smoking Cannabis?

Pulsing headache in neck and back of head from smoking cannabis? - headache back of neck

Does anyone know what's there to be? in 16th and havnt smoked weed at a time, about 6 months, and I had a few joints, and an hour later I had this nagging feeling at the back of the head and neck, I was really scared right situation when I was drugged. I have not been bad, and it is the day after. Who knows if this will be the case, or more or if I should go see a doctor?