hi I was cooking pasta on a gas stove and left the packet near the fire and the corner started to melt so I freaked out that something would happen to me for breathing in burning plastic fumes  (by the way im 14) im scared because I was really close to it when I breathed it in because it caught alight so I blew it out then breathed back in, please help me, will I be ok?
Inhaling plastic fumes are dangerous but only on long time exposure to create problems. As in your case it is just a small amount that you have inhaled. So nothing to worry about that.