referenced from
this thread ...
First, a disclaimer. i am by no means an authority on the
scriptures. but as far as i know, these are the underlying
teachings.
Jesus is GOD in flesh, He is perfect, on earth as He is in heaven.
In a human body, he experienced wat a normal human go thru, hungry,
tiredness, etc. but to say his strength is not perfect therefore
cannot endure curing everyone is wrong. Jesus wants everyone to be
well, that's why he spent so much time healing. why all is not
healed seems a pretty debatable issue. but in my opinion it has a
lot to do with our faith in Him; our faith in His willingness, in
His ability and His Joy to heal us. Like the woman who touched the
hem of Jesus's clothes and was healed (Luke 8:33-48, thanks to TX
for helping me find this
) .
ever wondered why the throngs of pple who were also there, touching
Him as he walked, were not healed? (at least no recordings that i
know of..hee) Read verse 48, it's her faith 
Next, it is not tiring for Jesus to heal/talk/be with the people.
in fact when we listen, when we draw from Him, it energizes him.
Read John 4:1-38, esp verse 31, 32-34.
Maybe neontetra, sillyme or M has anything to add or edit or
refute? i'm just typing all these based on wat i can remember n wat
i believe to be true... 