My 2 two year old gets a high fever lasting 2-3 days about every other month. is this normal? there are no other symptoms with it

Can be: The average toddler is expected to get 5-7 respiratory illnesses/yr to age 5 and 1-3 diarrhea illnesses in the same time frame. To space it every other month would be pretty common. Some kids run fever with their illnesses as a sigh of a robust immune system, some seem to have the same illness & never show many symptoms. In a kid that's growing & developing well & don't worry about that pattern.