I've noticed that when I run long runs that if I start to up the speed I start to get a pressure at the back of my head. (Roughly where neck meets the head). It's not painful but a little worrying. I don't get it on runs of less than 10K's. Is there anyone who has similar, know what it is. I'm wondering whether it's sinus or something more serious.
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I also have the same problem. I've narrowed it down to a couple of things - dehydration is the primary cause.
And also running too hard. If you are doing a long run it should be slow - save your speed sessions for shorter runs.
After races, I often have a headache like this for the rest of the day - I think it's due to effort, which I expect on race days, but you shouldn't be working that hard on training days.
Hope this helps - I'm no doctor and can only tell you what I've experienced!
and i am assuming its dehydration as well as i am rubbish at taking on fluids before i start
You wouldn't run a car with hardly any water in the radiator, especially in warm weather...the same principle applies. Apart from the noticeable physiological factors such as headaches, your muscles will overheat causing them to be less effective and more prone to injury.
But it is intersting these headaches are at the back of the head. Its my experience that headaches are most often at the front(i have had them when suffering from a virus). Could these headaches at the rear of the head be caused by something else. Its possible that it is caused by incorrect posture while running.
Lozf,
If you are suffering from headaches for the rest of the day that sounds like you are on the edge of dehydration and a run is just pushing you over the edge. Just drink more water, i find that robinsons type drinks help you to drink more(dilute to taste).
I only experience headaches after a warm half marathon race - I do sweat a lot and physically can't get enough fluid in during a race to offset the dehydration. (I take a LONG time to get round!!!!)
I do drink at least 2.5 litres of water a day when not training and 3.5 - 4 litres when training, and I do the wee check!