Ive got a fear, but not a phobia of higts, too. I can look over the edge of things, but i never do stupid things like other do (i.e: bending over the edge). And guys, fear of hights aint anything bad, stupid things like aracknephobia are (the erashional fear of spiders), and aquaphobia and the likes of that.
There is logic in fearing hights, because, unlike a fear of spiders, most spiders (apart from in america and austrailia where anything that moves either bits stings or poisons ur sorry little ass) dont splat ur guts all over the floor at 100 mph falling speed, and dont smash ur head against tghe ground like falling from a hight does.
KK, heres abit of comfort: If it doesn't kill you, it will criple you for life, and ruin ur life, and most likely it will kill you, and dont forget, if ur not careful u could fall off at anytime and get ur guts and brains all over the pavement with rats scavenging ur corpse. So, not anything to worry about
Personally, when i get a fear of hught, my fingers go limbp.