Became ill July 2011, had to go on sick leave from work October 20, 2011. On Midodrine, Mestinon, Magnesium L-Threonate and other nutritional supplements. Trial on Doxycycline to see if I have Lyme Disease, testing was negative. I am back to work 6 hours a day now and slowly improving. Positive TTT, diagnosed with NCS on 12-12-11, but I believe I have POTS since my pulse increases by 30 BPM upon standing and my blood pressure doesn't really drop.