Hi. I m really worried and stressed out about this. For the past month now, i have started having these horrible head aches. Had a CT done, it had came back normal. I have an appointment with Neurology in a couple weeks. but now i m starting to have weird popping sensations in my head, and a severe burning on the upper right side of my head. I m freaked out. Is it possible the CT couldn t pick up certain things that could be wrong. i m worried about a possible Anyeurism, or nerve damage or something. I m also scared, because a month back before all this pain started, i had a bad drug over dose. and the pain has been happening ever since. i m worried i caused something bad to happen. please, any advice to ease my mind. i m so freaking out. I will talk to the neurologist in a couple weeks, but does the burning or popping in my head sound like something that needs to get checked out asap, or can it wait.? thanks so much.