Two issues are going on here?
First off the SPREADING of that burning. If it were me? I'd call the neuro I'm to see in Dec [not too far from now? really] and explain HOW things are progressing. Where and how bad. I do believe many prior posts can give you the 'right words' to write down...and YOU DO right them down. Make a list of what's happened from day one to day now? and where things went sort of fast? I say that because that's what happened to me.
Be very clear about your stomach and chest feelings. And Concise. Think of ONE WORD descriptions that are most 'right' for what is going on.
Second issue? -Call your regular doc and ASK....should I go to the ER? Me? I wish, in my own case, I'd not, but rather went directly to the neuro....but it's water under the bridge. My regular doc said go to the ER where even morpheine didn't numb that pain. BUT yours, with the breathing should get you treatment and FAST! Tomorrow morning first thing! Promise me you will call your docs? It's crucial for your long term health and well being to get seen and tested and hopefully helped ASAP!
My heart is with you for the duration! Just let us all know how things go! IF docs don't call you back by mid day? Call again! Then call again at 3PM! You are having a real problem if you can't breathe or you are having stomach problems to boot? As I said, write it down, make a list, then check it off!
I know it's HARD to keep it 'short and sweet' when you are in OH!MY GOSH!!-what the fruitcakes is going on?- mode? But, writing it down and keeping it to that list HELPS both you and your docs FOCUS Also It's useful to write it down, then keep a picture of what you wrote in your mind? Cause many, many docs will be asking you all sorts of relevant and then some truly silly questions... And they'll ask...over and over and over again! Being consistent helps a BIG bunch. Besides? Breathing is a very useful thing? If you've not noticed?
Take deep[mental] breaths before you speak to any one, I know it's hard, but you've GOT to stick to facts that can help the docs...even if you are in that PANIC MODE - and you are near that now...I can tell, cause I've been there myself. More than once?
Keep having faith that docs get 'smart' about what is happening to you! And then do something right!! Hugs 's and hope always! - j