If I had a dollar for everytime I was told that I am thinking too much... My usual response is Proverbs 3: 21 and 22:
My son, may they not get away from your eyes. Safeguard practical wisdom and thinking ability, and they will prove to be life to your soul and charm to you throat.
Not sure what the 'charm to your throat' thing is all about, but I follow up with - so what is wrong with thinking again?