On my last visit to my general practitioner I mention to her I sometimes get " sex headaches". The more intense the orgasm, more intense the headache. Last for only a few minutes, but leaves me feeling tired and woozy. Judging from the look she gave me, I don't think she's had any good dick in a very long time...lol.  
My OBGYN is a chatty Cathy, so while she's between my legs doing her thing, I ask her about my occasional headaches. She pop's her head up and gives me this blank look.

I would start with trying to figure out the "trigger". Start taking notes as to the length and thickness of the tools that give you the headaches. If there is no pattern there, then focus on the length and intensity of the orgasm. If nothing there then the circumstances surrounding the orgasm. For example, mish, doggie, in the shower, on the kitchen counter, etc.

The Mayo Clinic has something to say about sex headaches (besides, "You lucky lady!")...see the link below.

My printer is printing out my fake medical degree.  It'll just be a few seconds and then I'll be qualified to perform neuro surgery to cure that headache.  

At your service Ma'am

If not, it's probably nothing to worry about but your OBGYN or your veterinarian are not the proper doctors to consult and certainly not the GD board peanut gallery.  
There are headache/migraine doctors that you can consult with or even a geriatric doctor.      

-- Modified on 8/25/2014 3:46:13 PM

And see a neurologist - not a cardiologist or GP.

I was in the midst of a furious round with an ATF and I got a really bad headache and we had to stop. It happened again later in the session and one other time with her. I think I was straining too much and my blood pressure was building, but that's just a guess. I never got it checked out as it didn't happen again.