Hello. My 7 year old son is experiencing headaches (migraines) and vomiting. This has happened once before and we were concerned it was due to him getting less sleep. He has had stomach pain since 1:30 PM CST. Began throwing up around 5:30 PM CST. Thrown up 3 times between 5:30 PM CST to 6:51 PM CST Is appendicitis a possible cause of this? We ve taken him to our family doctor who has suggested that this was simply due to migraines and that it s something he will grow out of. I am concerned.