i have a dr appointment

okay here i go again, i just wrote this and then accidentally hit cancel instead of post, aaahhh.  here goes, i have a dr.s appointment on wednesday.  i need help with being taken seriously about my headaches.  as soon as i mention that they start at the base of my skull they say tension headache and thats the end of it.  i have had these headaches since i was 7 years old.  they always start at the base of my skull and end up behind my left eye which i tend to squint or close when they get really bad.  my head pounds with every heartbeat, sometimes if i'm really still it helps but the instant i move boom boom boom.  these episodes usually come and go sometimes lasting up to a week and then i may not have one for a few weeks or even months but here lately it's been more often.  i haven't been able to find a pattern.  i have had a headache to some degree everyday for the past month and a half.  i'm frustrated and cranky.  like i said i have an appointment and i want to be taken seriously.  any suggestions would be helpful.  thank you.