I'm a gnome warlock with leatherworking and skinning as my professions. I'm starting to think I should have been a tailor instead of a leatherworker, since I can't wear leather armor and cloth stuff is scarce.
Online I've read that when you change profession, it also costs you your "support skills." And elsewhere in the same FAQ it calls the secondary professions "support skills" plus it also lists other primary professions as "support skills," for example saying skinning is a upport skill to leatherworking, etc.

So... if I change to tailor, will I lose my experience in skinning? Or cooking, first aid and fishing?