in 1955 a ball of fire appeared i my right eye. the USAF drs said they needed to heat up my blood and gave me typhoid fever, which worked as it killed the ball of fire but i lost the central vision. the also told me not to give blood. now ever since then about 3 to 4 times a year i get violent shaking chills an sweat lasting about 2 hrs. Always in the early am time frame. I was told that if they had cortozone it would have done the job.