Kingofkorea

Hi. I recently started playing on this server as a hunter. I made it to lvl 10, and did my hunter quest to be able to tame a pet. My problem is when ever i tame a pet i keep loosing it. I made a macro to feed it, and are feeding it constantly to keep the mood up. I tamed about 5 or 6 boars and I gained 3 lvls for 1 of them, and suddenly when running to the next mop it disappears. Can any body tell me what im doing wrong, cuz im loosing my mind trying to figure :P Thanks.