why hasnt this song ever left me

I know this is probably the strangest thing i mite ever say, but i think i wrote a song. ok let me explain... i dont remember who taught me it, or where i heard it, but on one occassion years ago i learnt this song. since that one time, iv remembered the melody, the lyrics and everything - but i cant find anyone else that knows it, tried googling the lyrics and nothing comes up, and for nearly ten years now ive never heard it anywhere again... and so if i dont get any decent claims to it, im accepting and drawing the conclusion, maybe i wrote it.lol... its a worship song - maybe the Holy Spirit dropped it in me during worship, and i was too young to understand so it got engraved in my mind. maybe i just made it up - who knows. either way its really begining to bug me now. the song keep popping up in my head regularly and i have no idea why. im not even exaggerating when i say that over the last month its been on my mind more than twice a week for different periods of time...the lyrics are quite simple, and it only has one verse showing im not a great songwriter. but here it is (mayb i'll sing it to ya one day.lol):

What can my heart render,
in your courts oh Lord?
What can i present to you,
to display my joy?
See the angels gather,
around your throne oh Lord.
"Holy God, Almighty"
we will sing in awe

(chorus)
Let me sing to you,
my new song for you.
Let my voice be true,
oh Spirit come,
accept all the worship due,
Glory belongs to you.

Let me honour you,
give my best for you,
Let my voice be true,
oh Spirit come,
accept all the worship due,
Glory belongs to you.