my ds screamed like that for three days straight after the DTaP. and my very conventional dr agreed with me not to give him the next dose of the vax. and we didnt vax my next baby either. its not a normal scream like from an ear infection or uti or even a broken bone.
but back to you....I'm keeping your baby in my tfillos. and recommending you file a VAERS report, find a homeopath and seek neuro eval. B'ezras Hashem he will be fine this time, but I would think twice before vaxing him again.
