Lashes done right are not uncomfortable. You should not feel their physical presence. It shouldn't itch or poke and if the right weight was used, you shouldn't have lashes twisting and turning come fill time.
While full sets can look beautiful to you when you first leave the salon, damage underneath could be lurking. As an artist I see your lashes from our angle. I can tell if lashes have been glued together or if too much glue was used or maybe the lash was glued to your skin.