My son had a capsule endoscopy on Tuesday and unlike the previous two he has had where he passed the capsule within a day or two, he hasn't seen this one, he said he's been checking and is thorough. I'm concerned that he has retained it, though wouldn't it be causing issues now or can they stay inside for longer? I'm thinking he may have missed it but I'd feel more comfortable knowing it was out? Has anyone had this happen before? Is an X-ray on the cards? I know it's a very small percentage that this can happen but I'm just a little worried! Thanks.