I think i've experienced this before.

You may know when you are sexually aroused blood flows to your genitals and more quickly through the rest of your body (including your brain). This may be one reason why you had a sudden pounding headache, especially if it was just before orgasm. Naseau often accompanies strong head aches, naseau doesn't actually originate in your stomach but usually when your brain is affected (like in a concussion)

is it possible you were in a position where you head was lower than your heart which increased the blood flow just because of gravity? Some people say hanging your head over the bed (or couch or counter...Where ever you happen to be!) can make your orgasm even better... Personally, it just makes my head hurt...

Dear deborah,

i too have experienced these headaches for years and I can't believe I have finally found someone else. Unlike you, I have them at times other than during sex. The first time I ever experienced this was during sex, but the other times seem to be when I am either working out or singing really high. I know, it sounds strange. The first time it happened the pain lasted about 20 mins with terrible sharp pounding pain. I could have drawn a line with a pen on my head exactly where it hurt. Each time it has happened since I could do the same. I went to a pain clinic and they gave me what they called a nerve block because I had residual pain for approx a week after the first time. They gave me a shot in my head right behind my ear. Whenever I have this done, it prevents them for about 3 months. Yes, they hurt like hell and I usually pass out! I've had three in the last 4 years. I have been to the emergency room twice and the iv drip is always wonderful. Since my last trip to the er, my husband has learned to give me these migraine shots that come in a pen form. These seem to help, but I have to go to sleep after receiving it.

I will probably spell this wrong, but I have been told that it is my oxcipital nerve that is creating the problem. It becomes aggrivated some how, possibly by cracking my neck all the time or tension. I feel for you. I have regular migraines as well and I know that know one believes you when you tell them that these are worse. It really puts a huge damper on your sex life. One thing that I might mention is to remember to breathe. It doesn't always work for me, but sometimes it does. And just when I thought I made to the climax without the headache...Bam!

I hope that this is of help to you. I recommend seeing a neurologist just to make sure. I even had a cat scan the first time I went to the er. Everything was fine, but in a way I hoped that they would find something to justify the pain. I haven't had a headache in about 6 months. But the sad thing is, I typically don't worry about me in bed. It's easier that way and the headaches make you not care. My husband is great and we occassionally try, sometimes with success and other times without. And to those that "think" they have experienced one, you would know without a doubt if you have!
Good luck to you.

I have also experienced this. It happens to me when I masturbate in the bath after I have had the water over my head. It does not happen when the head or body is not wet. The pain is so crippling and far more than any headache. Is enough to make me throw out.

I would see a neurologist. This may be nothing but a coital headache but the nausea is what you report that bothers me. Ask for a MRI to make sure there is not some vascular anomaly that you are unaware of. Just a precaution.