Gary Barlow Dying Inside Lyrics

What you don't know,
Is all I know.

How can I make sure that I fool everyone?
Gonna wear a suit and tie and put my bravest face on.
And it's far too deep to show you this wound.
No it wont heal, no time soon.
Nobody knows what I'm going through.

I'm dying inside.
Who know's what I'm thinking, what I'm trying to hide?
Here I'm dying all night
I'm breathing, but I can't feel life.
I'm smiling, but I'm dying inside.

How can I make sure that I'm invisible?
I find just a simple phrase that may say it all.
Cause it's far too soon and not the right time