Hi! I have been suffering from POTS for 9 years now, but was managing my symptoms quite well for the last year and feeling OK and able to do more than I used to. I recently had the flu (type A) 5 weeks ago. Ever since I have felt horrible and have had a worsening of symptoms, plus new symptoms like muscle aches/pain, headaches, neck pain and shoulder pain. Has anybody else had this problem? Is there anything I can do about it? How long does this exacerbation last? Any input would be greatly appreciated.