I'm wondering how common this it is to begin having acid reflux and IBS symptoms at age 40. I never had any GI symptoms before. For the past 4 months, I've had acid reflux most days and bloating and cramping about half the days. Alot of constipation. I have been on Aciphex (caused more cramping), Prevacid (allergic reaction) and now Prilosec (works somewhat). I also take fiber supplement and Chinese herbal medications to help move things along. The two specialists that I went to say it's too early to diagnose. I've had blood, urine, stool and a barium upper GI to rule out other causes. Any thoughts on these issues, I would appreciate, as I'm new to this exciting world of indigestion.