This happens to my boyfriend, too. We thought it was only him! He'll swim in the early am, then sometime during the day bend down to pick something up or whatever and the water comes gushing out. He doesn't get any funny/tired/dizzy feeling from it (aside from how odd it is to have water pouring out of his head), but we do swim in a saltwater pool, which may be friendlier than chlorine. One thing about it is that it's probably a lot less water than it feels like. You might try bending at the waist while you're drying off to see if you can get it to come out right after your swim rather than waiting for it to come out sometime later. Good luck!

Brain damage? No. The worst that will happen is you burn your nasal and sinus cavities, where the water will be stored. The chemicals used in treating pool water are quite mild in the concentrations you find, and are mostly harmless. I'm not sure why you are feeling tired or dizzy.

LOL I've never heard of water pouring out of the nose before. Sometimes it will get stuck in my ears for an hour or two before draining, but never my nose... It sounds pretty harmless though.

The best way to tell if the water is the cause of the funny feeling is how did you feel after the water came out. After a little while, did you feel better, if this is the case, I would say you are pretty safe in assuming that is why you felt funny.

This happens to me all the time. I just bend way over right after a swim and let it all drain out. When I do this, I never have leakage later on in the day. With everything else going on in the world, pool water up the nose won't be your demise. I bet the lightheaded feeling is simply due to a lack of oxygen during your swim. Do you have good breathing technique?

Did any of you ever have sinusitis or anything similar?
I am asking because this 'water out of my nose after I swim' happens to me all the time - and I thought that everybody has it [and it just depends on the conditions you swim in]. But just the other day I went diving with a large group of friends and only me and another person had this afterwards. This person told me that it happens because she had sinusitis - and that I too probably had sinusitis but without knowing.
I searched the net but was unable to find any information - other than that there are only a few people with the same 'symptoms'.

Thanks

Hey cool I am not alone. Yep I get this, I bend over and it's like a tap. My son still cracks up when he sees it. Get yourself to an alergy specialist. I reckon my issue comes from the fact that after working in a paint factory for a couple of summers, I had no lining left in my nose. I moved to the south of France where I am allergic to most everything. That makes my nose/sinus inflamed. everything in my head is on fire if I am not on my meds against the allergies, ears nose eyes and throat. I am pretty certain it's normal to take in water but the lack of membrane makes it just go up higher and harder to get out when I get out of the water.
It could also be related to head being down too low in the water when doing the crawl. but I haven't figured it out, just hunches. I have noticed since my form in the water got better it happens less. But I really thought it was just me.