I thought this was a good article by Shawn Siegel (host of rado show The Vaccine Myth: An Issue of Trust). I agree with him, 'mild' vaccine reactions may be common but they are are far from normal,
There are 8,000 different adverse vaccine reactions listed in the complete CDC’s VAERS database. (1) The majority of them are what we would expect; nausea, swelling at the injection site, crying, fever, and the like. Though such reactions are universally characterized as normal by the medical community, they are not . They may be typical vaccine reactions, but they’re the body’s response to the noxious ingredients; they’re not normal. In most folks, a temperature of 98.6 degrees Fahrenheit is normal; fever is not. A limber arm is normal; one pained by a hot, hardened lump, the result of aggregated aluminum from a vaccine adjuvant, is not. (2) Moreover, though vaccine reactions vary in severity, a reaction at any level is often a harbinger of more severe reactions to subsequent vaccinations.