According to Everyday Health, celiac disease was once believed as a childhood disease until it was revealed that adults can be diagnosed with it as well. Because more adults are being diagnosed with the disease, experts are now understanding how common the autoimmune disease actually is. Celiac disease doesn't stop at the gastrointestinal symptoms, like bloating, diarrhea, constipation and fatigue. Signs and symptoms can also be bone loss, malnutrition, lactose intolerance, depression, and mood changes. 

It has been found that celiac disease is linked to over 200 symptoms, which leaves doctors a lot of room for error. These symptoms also mimic other diseases. Fortunately, there are specific tests to diagnose the disease, but these procedures are usually invasive. 

Children and adolescents with celiac disease can present these symptoms:

• Delayed puberty
• Joint pain
• Fatigue
• Chronic headaches and migraines
• Canker sores
• Skin rashes
• Stunted growth