oh btw my Gamma GT is 103 IU/L.  I understand this is not massively high but anything over 70 is considered abnormal, also my BMI is well within range for my height / weight

Well if you are otherwise well I would not go too crazy with worry.  You can try stopping alcohol.  

I had an experience where my alkaline phosphatase level was abnormal (like 5x max normal) and ended up with a lot of expensive useless testing.  The labs kept saying the bone level was causing it.  As it turns out they use bone = all other.  I had a fraction that did not respond to most lab tests (not liver, gi , or bone).  Finally one lab sent a report with liver, gi, bone and unknown.  The high reading was unknown.  As it turns out (and this took me months to figure out) you can get these unusual alkaline phosphatase  macromolecules that cause this result.  I forget now, but something due to binding with gamma globulin (maybe).  No known health problems result.  It happens to people with (you guessed it!) ulcerative colitis. 

Anyway,  after a long hospitalization for colitis when I was npo for a week and received tons of IV fluid it went away.   I've never looked again.  

So maybe you have something similar going on. 

Cheers for you thought Girlunky.  That is kinda re-assuring, however my liver enzymes are all fine, its literally just the Gamma GT and that seems to be on a upward curve over the last 12 months.....except of course when the Doc tested it and it was 'normal'.  Im tempted to get a third opinion to see who is correct, the 3 tests from thriva or the NHS.

If thriva are misreporting then i want to stop wasting my money on them (they test every 3 months), if thriva are correct i want to get back in with the docs to determine whats going on....

Because of the way normal/abnormal thresholds for lab tests are set they are generally terrible screening tests. Doing the test without a specific reason will more often steer you wrong than right, and do more harm than good. There is tremendous *normal* variation for many of these tests, and so-called abnormal values frequently are not an indication of disease. Even when there is a problem it can be time consuming and dangerous to run it down before it becomes clear enough to offer some decent clues, and there’s often little or no benefit to getting the diagnosis earlier. 

Cheers Scott, guess that makes sense, it's just that as there is an upward trend the urge is to get on top of it quick.   I had my colon removed due to dysplasia in the hepatic flexure, also many moons ago I got some bloods back from a doc that showed a spike in liver levels and they ultrasound my liver and found nothing..  on retest it  it was fine, now blood tests are coming back hot..... Well I'm seeing a pattern...

I have no reason to doubt my liver, but generic health tests keep pointing back to my liver and I would love to understand why.  I guess I may just have to track my levels and flag if I see any serious changes

Liver health concerns.  Unfortunately, having an autoimmune disease such as ulcerative colitis is linked to various liver diseases and malignancies, the absence of a colon not withstanding.  An indicator of possible problems is in the liver enzyme  readings.  These are obtained through a liver function test or complete metabolic panel blood test.  Of interest are AST, ALT and ALP.  Bile duct problems may be indicated.

Diagnosis is generally accomplished by MRCP and ERCP procedures of which I have now had both.  Do not ignore high numbers associated with these enzymes.  Follow them up with a  competent GI facility.  We should all be aware of  possible cholangiopancreatic problems after being diagnosed with ulcerative colitis.

Cheers Bruce, but as I said in my original post, all my enzymes are fine, it's only the gamma that's elevated.

Hi BOBISH  I was reading your post.  I am not a Dr. but I was diagnosed with Primary sclerosing cholangitis  which is liver disease.  My surgeon said it is from UC and immune system.   It is a slow progressing disease.   Were you ever diagnosed with this disease.  I am most likely wrong, It was just a thought that I wanted to pass it on to you.  Please let me know what your results are.   Hope your tests are good.   

There are no results btw.. thriva keeps telling me gamma GT is elevated and all my other liver function is fine.  That's strange on its own..

2 different NHS doctors (my gp and my bowel specialist) have both done gamma GT that came back normal... Not much I can do about this.... Both gp and doctor suggest that they trust the hospital test results over thriva.   Guess I will just keep an eye on it, flag it up again if it persists.