I am concerned about my daughter’s health and sudden weight gain. She has had G.I. Symptoms, such as very loose stools, excessive flatulence, abdominal cramping. Also, she has chronic sinusitis, is always tired ( needs 12 hours sleep) has muscle aches, sensitivity to light, heat, and loud noises. She will be 8 on January 31st, 2018. I took her to a pediatric Gastroenterologist last month. They did blood work and stool cultures. Recent rapid weight gain is a concern. Blood tests revealed only low vitamin D. She is 4’2” and 68 lbs.