Husband is going under the knife

Today is my husband's gall bladder surgery. He is 2 1/2 yrs post-RNY and his gall bladder is causing problems. He has been fine up until 2 weeks ago when he has his first attack. We ended up in the ER for hours. The ER doc denied the gall bladder was the problem despite the stone that was discovered on the ultrasound and his symptoms. Instead sent him home with narcotics and acid reflux meds. This slightly helped but really just masked the problem. Finally he was referred to a surgeon by his regular doc who said it must come out! And here we are! We are sitting in the waiting room waiting for him to be called back.