Last month, “mommy blogger” Lindsay Kujawa, experienced a mother’s worst nightmare. Her nearly-two-year-old son, Ronin, accidentally slipped into a spa beside a swimming pool at a party and swirled around in the water, gasping for air. Lindsey fished him out almost immediately and he cried for about 45 seconds before calming down. The shaken mom thought everything was fine…until they got home.

It was then that Lindsay noticed her young son seemed incredibly fatigued and coughed hard, his whole body tensing up into a spasm as he did so. Concerned, Lindsay called her son’s pediatrician and left a message on her voice mail. Within moments, the pediatrician called her back and encouraged her to take Ronin to the ER immediately.