Another issue with past lives is our health, a few years ago I did a reading for a lady quite by accident we met in a pub and I saw in my mind a vision of her being run over by a horse and cart, the wheels of the cart went over her back, I knew this wasn't going to happen as I saw cobbled streets and everything looked old, I mentioned this to her and to my surprise the previous week she had been to see a hypnotist for past life regression and she experienced the same vision in the fact of the horse and cart knocked her down at which point she passed over, my point is here that in this life she was suffering from a bad back from an early age, so it seems that our past lives can affect our next ones, even if on a subconscious level our past memories can cause physical symptoms from a past life.
There are many ways to find out our past life's, from dreams, regression and visions. Just out of curiosity take a look at your health problems or phobias in this life, especially if they were from a young age, phobias in particular are interesting I once worked with a hypnotist as I was learning about it at the time, and one subject he had was afraid of snakes although he was unlikely to encounter one in normal life, he would still freeze up and start to sweat if he saw a picture of one. The interesting thing here is when he was regressed to a previous life he was actually working in a jungle and was bitten by a snake which in turn he passed over due to poisoning. With this in mind our phobias may give us a clue to how we passed in a previous life, this of course doesn't mean all our little phobias may be from a past life, but the evidence there is quite interesting don't you think?