Why am I having distortions?

I often think things are moving when they are really not, such as mirrors, rugs, windows, walls... It's almost like that are waving like the ocean or breathing. I also look in the mirror sometimes and I thinking I huge (fat) when I know for a fact I am not. I know I am not, but my eyes make me feel like I am, so now I started working out at the gym. The reason I'm concerned now is because I was cleaning off a pair of my shoes and my shoes looks bigger than my foot is.... and now that I think about it, many things look TOO BIG to me.... sometimes I even feel odd... Like I'm too big (not in a fat way)... I don't know, but something is wrong and I'm tired of this.