I'm assuming you intended to write: "Ponytail Syndrome" or something similar. In which case the symptoms would be pain on the back or circumference of the head, originating from the hair follicles. The general term for pain in the scalp is Trichodynia.
Alternately: the symptoms of having a ponytail include the attenuation of cranial hairs through use of a band or other fastening agent into a flagellate shape, being a girl who is exercising, smelling constantly of dope, liking jazz or its regional equivalant, and being called names like "sunshine" or "California".
on your head
in the shops
Zig-Zag and the Ponytails - 2013 was released on: USA: 31 May 2013 (internet)
no
People pull them alot.
the wombat shuffle
Just one!
3
Of course you don't! You can just tie 2 ponytails (Pigtails are 2 ponytails) U can Plait them leave them normal but if you want to you can fishtail them.
Some do, some don't. I personally don't, but I've seen guys with ponytails with girlfriends, so someone must obviously be attracted to that.
ponytails
North korea