We have just hadto rush ds (15 months) to a dr. For no reason what so ever he had a fit, he calmly layed himself down then started jerking and frothing at the mouth, he stopped breating for a while. The dr said he wouldnt treat him as it was the first time hes done it and there was no obvious thing that brought it on. I have never been so scared in all my life. Has any one had a simmilar thing where there is no explination?