Growltiger, You say you're horrible at standing up for yourself. Some pointers: 1. Write down notes as you think of things you want to address with the doctor, and make sure your doctor spends enough time with you to answer them; 2. Bring a friend/family member with you as an advocate! It's hard to remember everything the doctor tells you, and it would be a big help to bring an assertive person along to make sure you're getting your questions answered. Now, Welcome to the Forum! As others have stated, it certainly sounds like POTS symptoms to me, along with the possibility of chronic fatigue syndrome and other issues. You need to get to a specialist who deals with POTS patients, and get a diagnosis. Many of us ending up going to the Mayo Clinic in Rochester, MN, or they have a great specialist in Phoenix, AZ. Cleveland Clinic is another great place to go. Have you had a tilt table test yet? I was diagnosed at Mayo Clinic in Phoenix, but was also seen in MN. These places are worth the time and energy for a diagnosis. If you become unable to work again, you'll need a firm diagnosis to file for disability. That's what I ended up having to do. If you have any questions about Mayo, please feel free to PM (personal message) me. Hang it there - you've come to the right place. Cheers, Jana