Tikkiro
Get another opinion! This guy sounds at best incommpetent, and at worse, an idiot. How he can determine your 'strength' by an arm wrestling match is unbelievable.
As you say, you don't appear to have anything pathalogical, although I know that Lupus can deteriorate.
Where are you from?? If it's anywhere near me, I can give you the address of the AME I went to; if not, I'm sure that you can get various AME addresses off this board
Good luck - keep at it
FD