Hi, thank you for this question. I try to asnwer it :)
On reincarnation: I believe as well that reincarnation is possible, may be it is even explicable with the DNA we carry, like we carry the memory and the consciousness of our ancestors. According to the teachtings of buddhists though, you can't be the reincarnation of the Buddha (which just means Enlightened Person), as he went over to Nirvana, a state of concsiousness/soul, after you reach this state, you soul breaks the circles of reincarnation as it learned everything needed and purified itself from all suffering and pain.
I believe also there was the one Buddha, with whom the teachings of buddhists begin, but there were /are many other Buddhas. Enlightened people who have a special aura and feel love and compassion and serve all living beings.
It might be that you are born with already high level of concsiousness (you respected your own body and felt compassion to others and so on). It doesn't mean necessarily for me you were a buddhist in your past life, because there were and are Buddhas/Enlightened Persons in all countries/cultures (Saints, Mother Teresa, etc,etc) who felt so much compassion and love to the world that they dedicated their whole life and served the others.
In my opinion: keep up your spirit of compassion and let your heart grow it like a tree, that it can grow strong and big. Everyone has done foolish things and little and big mistakes, as well those who were Saints in the end.
The biggest joy anyone can feel in life is to serve the others and than to yourself:). P.S.: There is one great book by Hermann Hesse, "Siddhartha" - one of best books ever written about Buddha. In case you want more inspiration.
Thanks for that answer. My initial question was actually a typo. It should have said, "Am I a reincarnated Buddhist?"