My son is 9 and has ADD. We've had it under control, but lately he has not been sleeping. He has also complained about stomach pain and nausea while at school and at home. He's been like this for a week. We took him to the doctor and she thought it was acid reflux. So, she gave us medication and sent us home. He's got a very finicky diet so I was concerned about anemia or something else. I'm taking him for a full work up but wanted to check to see if anyone has any any ideas about what it could be.