What is rubbish is how anxiety, panic and faulty perceptions can cause us such freaking' crap. But it can - and it does. The garbage our issues can throw at us can bring us to our knees, sometimes. But, that said, you, still, do not have MS or ALS. You have a history of mental health issues. But, that's OK, for sure. That's why we are here on this website....trying to get some temporary relief and some compassion from our, sometimes, dominating trials. There is nothing else that anyone on The AZ can tell you which will ease your mind much, most likely. I'm glad you got lots of great, caring, empathetic replies, though. Sure makes us feel not so isolated in our conditions. Typically, when we get extremely worked up, the best quick provider of some solace is through realizing and focusing upon our own history and our past experiences with our mental health issues. We've, almost always, been down these same roads before, where we were CERTAIN that we were destined for some bad, bad news about our health, and inturn, a rotten outlook for our future. But, of course, we didn't have that sinister disease or illness previously and we, OVERWHELMINGLY, do not have them now. What we, still, do have, though is issues with anxiety, panic, insecurity, depression and other mental health concerns, depending on our individual cases. And, it's the "This time it's different!" "This time it's worse!" feeling which gets us going wacky each new time we get really, really amped up. But, it is really not different, it is the same basic anxiety, the same the same basic fears and the same basic outcome - which is us freaking out about dying and / or being disabled and / or leaving behind our loved ones to flounder without us.
OK, so the med Docs are getting you no relief. So, to me, I would, perhaps, try to stop thinking that the med Docs are where you should be going to find some peace of mind - or get a diagnosis. A diagnosis of MS or ALS is not forthcoming, no matter how much you believe you might have them. Peace of mind in a med Doc is not forthcoming, either. So, IMHO, the best place for you to turn is to your mental health professionals. What is available to you currently? I know you're under some type of care.
What do you do yourself that might help reduce some of your anxiety? Meditation, positive affirmations, yoga, exercise, reading self-help books, websites, relaxation techniques, breathing exercises, hobbies, cleaning, busy work, etc?
There is help:) There is relief:)
Peace and Feel Well:)