welll i have on my right toe, at the top my toenail is dying it is turning white, and im nit sure if its a fungus or what. and on my other big toenail on the left foot i have a horizontal line across the whole nail and looks like its starting to peel up where the line is, its a white line and i hear horizontal white lines on nails are dangerous. what do you think is happening? i have also had bad stomach and back problems for the past year, but im very young so its not normal