Unsure

I'm very unsure about to moz app with the TX dr's...i don't know what to except or if they will do any test, i think the thing that is getting to me the most is that they could turn around and say no or that I'm too well.
Half of me thinks I'm to well but that half of me is the half that sits on the sofa all day bored, the only hard thing I'm doing is breathing and most of the time i don't think about it unless i get up and walk, but then if i do get up and say go to the toilet or fill the dishwasher or even make Connor something to eat i feel it, i feel so tired or breathless and just not well.
New lungs is the light at the end of the tunnel because i would hate it if this is all my life is, not living just surviving from day to day.
I cant work, i cant play with Connor, i cant take the dog out for a walk, i haven't been shopping since before Xmas and even that was with me in a chair with some one pushing me.
day to day life is getting hard.