Didn't know whether this may be of interest.

I have Gilbert's - many do but it is undiagnosed. With my thyroid being rubbish I was going quite yellow, so they checked out my liver function.

About 1/4 of the way down the page in this link is some anecdotes and info about links to the 2 which I found really interesting and has given me a bit more oomph and info to try and rid myself of the remaining lowish mood and aches and pains that I have

gilbert's and hypoT