For a few weeks now I've noticed DP's breath has a distinctive sweet smell. Not a typical bad breath smell and I can still smell it after he has brushed and used mouthwash. I can smell it when I get in his car and in the room when I've been out and come back in. He's been saying he will ring the dentist and book an appointment but hasn't done this yet and he works away Monday - Friday so it's difficult to arrange a suitable time. However I had a google yesterday and the first thing that comes up is diabetes. He doesn't really have any of the other symptoms, he does feel tired a lot but this is nothing new. He is 32 and a healthy weight, doesn't have direct family history of diabetes (mum or dad doesn't have it, he's unsure about the rest). He doesn't think he has diabetes and thinks I'm looking in to it too much but I'm just a bit concerned after googling. He eventually agreed to try and get it looked in to. Does anyone have any experience of this? Would a dentist appointment or doctors appointment be best? Could it just be nothing and go away eventually on it's own?