My Friends Son Has Stomach Pains& Has Been Eating Gluten

My friends son has stomach pains& has been eating gluten free.I worked in a hospital & patients with AAA have some similar symptoms There I s family history on this fathers side of heart disease,one uncle has bypass,one died of a heart attack& his father had nine stents put in last year.I just want to help my friend to have her son get checked.He is 33 years old.Thank you for your assistance.Email YYYY@YYYY .