Seirously, I didn't realise that my vey mild form wasn't just something that everyone had, but synaesthetics had more strongly. I've always seen number lines, especially for years (as in 1989,1990) and each year has a vague colour attatched to it. Feelings definately have colours, so I'll describe a bad lesson as a murky brown and my head of department just thinks I'm a weirdo!