That could be your gallbladder acting - perhaps a stone that is stuck in the duct causing you the pains.
A blocked gallbladder will create digestive problems you mentioned - I doubt you actually have too much acid - it may have more to do with limited amount of digestive juices, including bile (which secretion will be blocked with a bolcked gallbladder). Have the color of your stools changed to a lighter tone?
Liver Flush is typically recommended to alleviate gallbladder/liver/any issues