Widespread musculoskeletal pain is the most common symptom of fibromyalgia. It generally occurs at multiple sites throughout the body, although it may start in one region, such as the neck and shoulders, and later occur at other locations over a period of time.
But it can develop later in life. A milk allergy is an immune system reaction that causes various symptoms to form within the first hour of consuming the dairy product. Headaches and fatigue related to a milk allergy are the result of sinus inflammation.airy products on tabletop. Photo Credit Digital Vision./Photodisc/Getty Images. Consuming dairy products doesn't cause headaches and fatigue in healthy adults. If you eat dairy products and get a headache and fatigue, you may be allergic to milk or may be lactose intolerant.
A urinary tract infection and even an ear infection can sometimes cause nausea and vomiting. Symptoms of a milk allergy include vomiting, diarrhea, stomach pain, bloody stool, and rashes. In severe cases of milk allergy, a child may experience a life-threatening reaction called anaphylactic shock. If your child has a milk allergy, her immune system is responding to the proteins found in milk.