Neither of my 2 who receive vaxes had adverse reactions, however, chronic illness is other story.
DS1 - always sickly, would catch anything and everything, and has bowel troubles of the constipation type despite proper diet. He did not receive all vaxes as I was in the S&D camp, Rotashield was recalled sometime in his early months if not before, not sure, he never had it, so I can't blame it on his bowl troubles. He did have 3 OPV (it was taken off the US market),4 DTaP, 3 HepB, 1 HIB at 15 mo old, 1 MMR at 20 mo old and 1 CP at 20 mo old. I do think this was all too much for HIS system. He was delayed in speaking by a long enough period that it caused concern to our Pedi. He has some fine motor skill troubles.
DS2 - not as sickly in the respiratory manner, but chronic diarrhea, never looked super well. He had 4Dtap, 3IPV and 3 HepB. While his condition is genetic, I can't help but wonder if something in the pregnancy triggered it or if vaccination triggered it. Celiac is genetic,but w an environmental trigger not yet discovered by science, just a few theories. My dh and I just can't help but wonder. He also displays Austic type characteristics and yet never had an MMR, but aluminum he did have and plenty of it. He also has fine & gross motor skill troubles, medically tested and confirmed.
Our other 2 children are completely unvaxed and do not display illness like the above 2, nor do they display fine motor skill deficiencies.