Comment Hyperthymesia (Score 3, Informative) 114
Sounds like you might have a case of Hyperthymesia: http://en.wikipedia.org/wiki/Hyperthymestic
The actress Marilu Henner supposedly has this condition. She claims to remember every day of her life since age 11.
Its rare, but it happens and apparently it can be a exhausting and a burden on the person.