sarahc, I'm not really sure what you want to hear. Everyone keeps saying, "yes, it's anxiety," yet you keep saying, "no no, I have ALS!"
What to do? You want us to agree and say "yes, it sure sounds like you have ALS?"
You either have to trust us, or not.
What you're experiencing, this set of symptoms that just TOO perfectly lines up with your affliction of choice to be "just anxiety," that's happened to me three times before. Since my HA started, I was convinced, CONVINCED, that I've had hypoglycemia, leukemia and liver failure. And each time, it start with having one symptom and then I would go look up more symptoms, and would notice that maybe I had another one or two on the list, and at that point I'd be completely convinced that I had "syndrome X" and before I knew it, I was experiencing EVERY symptom, and therefore MUST HAVE THAT DISEASE.
But guess what? I was wrong. Every single time, wrong. And that's what the mind does. When you get so totally wrapped up in thinking you have a disease, your mind will manufacture the symptoms for you. Crazy? Maybe, but that's the way the mind works. It's an incredible machine, and we are all gifted with incredible imaginations, which, if you think about it, is all HA really is: an insanely overactive imagination that's turned inward and is fixated on ugly things.
So, my advice to you, is to shut down the computer for a while. Get out of your head, a focus on something in real life that's right in front of you. Stop searching for reassurance here (for now) because whatever it is you're looking for, we're not able to give you, clearly. Stop googling, for the love, you know this, it never does anyone good. Do you have anyone close to you who knows what you're going through? Tell them. Find someone to confide in, get some support. I know what it's like to be so insanely wrapped up in a perceived illness, it's hard to think about anything else, but try, right? How about treating your anxiety? Are you seeing a counselor? What about medication? These things, while helpful to varying degrees, can be beneficial, and will help take you out of the cycle of fear and symptoms, fear and symptoms.
I think deep down, you know this is anxiety. That's why you keep posting to a hypochondriacs board. But when you ask for reassurance and get it, believe in it, please! We are all in the same boat with being convinced we are ill, that's why we're here. But have you, in all your time here, ever heard someone say, "I was right! I have this awful disease?" Nope. You're not the exception, darling, trust us.