Sorry for the late update.
My bioscopys came back negative so im not Celiac, however they did find a problem with my lower esophageal sphincter being weak causing Acid Reflux.
Basically they have told be all my other problems are down to lifestyle and work.
When i mentioned NCGI they looked at me as if i had 3 heads (so looks like they've never heard about it).
So im now trying to eat healthier and get more sleep. Ive also started taking St. John's Wort to try and give me a kick of motivation.
As for exercise, Im off to a spa in April with the fiance to be (Gonna pop the question there) and hopefully ill get to kick start myself at there gym.
Failing all this if I don't feel any better in a 6 months ill try going gluten free.
Many thanks for all the advice.