Lately I Have Been Having A Lot Of "brain Fog",

Lately I have been having a lot of "brain fog", fatigue, and some anxiety. I have also had gallbladder problems for several years. In 2008 I had a HIDA scan with a result of 98%. For the last 2 days I have had tan/gray chalky stool, which has not happened to me in the past, but I am familiar with being associated with gallbladder issues. Could my symptoms all be associated with one common problem?