Hi there, just came back from the er with my 9 month old, earlier this evening he swallowed a quarter size thin peice of what feels and looks like soft vinyl, his breathing was great and his throat clear, but i m still worried about this damaging him. It came off of a soft toy ball which was made in 2002, I m also a little worried about what kinda chemicals could be in the peice he swallowed. This happened almost 8 hours ago now, if there was anything toxoc would he have developed symptoms by now?