<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hello my son was born with a genesis of the corpus callosum his health is normally good and just has developmental delay. He is complaining of a headache and says his right arm feels tingly. He threw up and has a fever of 101.1. Is this concerning? Should I take him to the doctor?  <response>: Hello! Welcome on Chat Doctor ! His symptoms fever may indicate an infection. From the other hand the headache and tingling in the right arm may be indicative of a seizure, especially considering the fact that he has corpus callosum agenesis. For this reason, I recommend consulting with his doctor for a careful physical exam and some tests chest X-ray study, complete blood count, urinalysis, PCR, an EEG. Hope you will find this answer helpful! Best wishes, 