Is it auras?

When I stand in front of the mirror in the bathroom I see colours surrounding me. I don`t have to look long before they appear. Sometimes they appear after a couple of seconds. The one closest to my head appears to be a yellow/green/blue-ish colour. Next to it I can see a light orange/yellow colour and then comes a purple one. I couldn`t see all colours when I started practicing. I`ve tried looking at things. I see pink around green things etc. One time I was sitting on the train and I saw a purple shade around a woman's head. I see shades around peoples heads from time to time, but I do not always see colours. Some lighting is hard I guess. I`ve seen silver sparkles appearing beside the colours as well. But is this really the aura? Thanks in advance for your reply.

Eva's response: It definitely sounds like you're seeing auras. Just relax and go with it and you'll begin to interpret what those colors and shapes are.