What are your headaches like and where are they?

I ask b/c I am wondering if I have a 0mm chairi. I have lots of symptoms but the one that started off was a stabbing excrutiating headache on the right side just around the base of my skull. I have it on and off for a year and a half now. I am in the process of trying to get a Dr to order a cine MRI to send to a chiari specialist to read but I am wondering if this sounds like the kind of headaches you get or not?