Hi im a 20 year old male bout 6 foot 150 lbs, the only medical problem i have is asthma and its not severe. The question that i have is that i did meth for my first time and i had smoked it two days ago. While i was smoking right after i hit it i got a severe pain in the back of my head on my right side i waited for it to subside and took another hit and upon releasing the smoke my entire head was in aggonizing throbbing pain. That day i had head pains that lasted 4-5 hours and now its been 2 days and i still get the headache on and off. i was just wondering if this was cause for concern?