I Am A 45 Year Old Female Had My Gallbladder

I am a 45 year old female had my gallbladder out 2 years ago . about a month ago I started experiencing Phantom pain in the area of my gallbladder. now the pain is moving to the mid sternum area with at time the pain going around to the right side of my back . It first was there only after I ate , not its there all the time. I feel bloated all the time. Im worried because my sister died of liver cancer 3 years ago at the age of 58. How do I know its post Choli pain or liver issues? Trying to get into my GP for weeks , but can't get an appointment.