Such cases of nagging are not uncommon among people who are sometimes unduly concerned about nothing serious.  They borrow worry and make trifle a tragedy.  The doctor who recommended the MRI scan has obviously taken you for a ride just because of your imaginary fears of double vision.  While you became poorer by more than Rs. 10,000  on your nest-egg, the doctor who recommended the MRI scan to his friend lost all his credibility and ethics for the sake of money without a drop of sweat on his brow.