I also have always been troubled by what I described as entire "AGE Blocks" huge blocks of time (sometimes seemingly an entire year) in my childhood that I simply cannot recall any substantive details....just a hint of them...usually only involving one sense....I will hear something and then remember a smell from my past....I'll see something and remember a sound or a tune. Wrapped in these smells and sounds are deep feelings but I simply cannot unravel the feelings enough to try to figure what caused them. I too had a childhood "incident" that I later blamed for these blocks, but I doubt that was the cause as usually when you identify the cause of the block you can then remove it.