Dan-There are quite destinct differences. In most PND cases, you don't see the funny side of anything, you can't "enjoy" your baby much, you have self harm/harm to the baby thoughts, etc. No, not in all cases, but I'm just telling you what I know. By the sounds of things, you're exhausted, but reevaluate and keep talking to your GP. Everything can spiral VERY quickly as I found out, so it's something you want to get on top of, pronto.