"Treatment of Opthalmology dept"

Having been okayed for cataract surgery I was advised that my blood pressure and pulse high and low respectively.i was then sent to aande to be checked out.i was then taken to majors a.after having been checked and told that my blood pressure was high and pulse low.i then waited for six hours and advised I needed a pacemaker.at ten o'clock at night the cardiology team can to see me.they then advised me that I had a benign irregular heart beat and was sent home physically fit.this morning I received a letter telling me I had been taken off the cataract surgery as unfit for surgery.i have had enough stress already.how can this happen today