I am a 31 year old female I have been suffering for a long time from stomach discomford bad taste in my mouth and I have done ultrasounds,gastroscopie,and tried nexium ,pantaloc,doxitab, zantac ,they even gave me pills for depression .. Nothing worked I AM not a deppressed person .I FELL something in my stomach. spit some black in my saliva sometimes. please DOCTOR what should I DO. Everyday I have pain .