Dude post in the medical section and you will get a better response.
With regards to the class 1 medical i was sooooooooooooooooo overweight when i did mine initially all those years ago and i passed with flying colours.
However i do remember running everyday a month before so that may have had some positive effects. I've lost huge amounts of weight since then but i remember i didn't have a great lung capacity (for a non smoker) and i passed.
The 'docs' down there have a philosophy of doing all they can so they can pass and not fail you unless you have a serious defect that affects the operation of a pressurised metal tube.
Relax, chill have fun it will all be fine (you will walk round for most of the session like a porn star on a break ie. in a gown)
