As an adult, if I try to more strongly tap into my flavour of synesthesia, it starts to feel "made up"; Example, if I query my brain for "what's associated with 2" the response will be "orange, (but I think I just generated that now)" so I sadly kind of dismiss it.
I had the biggest conundrum as a child. I remembered my grandmother had two dolls on her shelf, one pink and one blue. One tall and thin, one short and fat.
I also remembered that the colors "matched" the body types.
But I can't for the life of me remember if it was "pink = tall and slim" and "blue = short and fat" or the other way round. Both make sense! It's like a synesthesia blue/gold dress, all happening inside my head!