I am thinking about getting a book called The Subtle art of not giving a F@#$. I just read Man's Search for Meaning. I guess what I am getting at is anxiety is about the future, the unknown. Just trying to live day to day, more now. I've been having GI issues for many months now that preceded the POTS. I have a colonoscopy and EGD in 2 weeks. He's doing both at the same time. Just want to get it over to figure this out. I've narrowed it down to either I have an autoimmune disease, like PMR or GCA(or possibly an autoimmune reaction to h pylori) or I have carcinoid/PNS. Thing is, nothing has shown up on CT scans, ultrasounds or xrays. I hope you find the answers you are seeking.