For the past couple of months, I've been feeling a strange kind of sharp pinch in my brain for about 5 seconds at a time, rarely longer. I don't know what is causing it. I am really nervous about smoking or drinking, thinking that it might cause some kind of unhealthy trigger in my head. Also sometimes I feel tingly in parts of my head or body, and feel dizzy often. Whats wrong with me?
Explain those symptoms to your doctor. If they continue or grow worse, she or he could order you a brain scan or other imaging tests.