its not painful, its ticklish + a little numb numb feeling.
imagine close to or more than 50 fishes nimbling yr foot, leg
etc add on, some of the fishes are abt the size of your
finger...

I have yet see the pics you posted in your fb...
but I think I'll sure keep laughing once i put my legs in, coz i
very scared of ticklish too!!
lol