My mom--help me!!?

my mom has been really stressed lately an di heard my stepdad talking about my mom on the phone and he said green stuff was coming up when she vomits, and shes had heartburn and something about a thyroid. today she got bood tests done and the doctors dont know whats wrong with her..and wen i came home from school on the counter there was ginger ale, gatorade, an pepto bismal so what is going on?