I don't know if I have a moderate version of this or whether it's just regular imagination but I've always imagined days of the week as certain colours like Monday is red, Tuesday is a turquoisy blue, Wednesday is kind of hard to tell maybe a yellowy-orange, Thursday is a deep green, Friday is brown, Saturday is black and Sunday I really don't know. I know exactly what you mean about A being red and C being yellow.

Never taken Acid either.