I have had feelings in the past of things not feeling real. I do currently have the looking me in the mirror thing. I do not recognise myself. All I can suggest is mentioning it to your pdoc and when things don't feel real try mindfulness- concentrating on your surroundings, focusing what you're sat on etc to try and ground you? I don't know about the mirror thing. Sorry!

Sorry if this isn't much help! I suspect your stress will be the cause of it!