Blood test for common food allergies negative does this mean there wont be any reactions to food or anaphylaxis?!

Maybe,maybe not: The test would suggest you have no indication of an allergic response to the items tested.This would suggest you will not be troubled by a bad reaction to those items for your life, but you can develop a food allergy or intolerance later in life. Most food allergies are not of the anaphylaxis type, but produce hives or other symptoms.