You may experience some or none of the side effects listed in this article. Unfortunately, there is no way for your healthcare provider to know beforehand if you will have problems with this vaccine.
Therefore, make sure to let your healthcare provider know if you develop any reactions after getting MMR. Also, let your healthcare provider know if something "just does not seem right." While it may not be a side effect of the MMR vaccine, your healthcare provider will be able to diagnose and treat the problem, or provide reassurance if nothing is the matter.