Yes, alcohol seems to flare it up. I also had discomfort on my arm, but it went away couple of days, but it returned again but lesser pain and a lot quicker to disappear. I am still not sure why it radiates to the arms, but I also have heard a lot of this from other people I know. Mine seems so restless and sometimes like a muscle pain. I usually carry my baby niece, but when my arms ache I dont carry heavy things to heal IF there really is a muscle related strain or damage.
I also heard from my brother in law which was also a sufferer of gerd before, he cant lift his left arms, he thought it was a strain because of exercise. Then his sister told him to avoid coffee and instead, drink lots of water because she thinks its gerd and it also happened to her.
He literally drank a lot of water! I mean a lot, where he actually went to the comfort room very often. Yes it might be hard, some people doesnt want to drink a lot of water, or sacrifice all the peeing hours (hihi) but!!!! It actually helped a lot for him and his gerd. Ofcourse i thought his gerd might be mild!!! but I also thought it might be same as mine as the symptoms are quite same also, like the cough shortness of breath and back/arm pain.
He also had a lot of tests like ekg, xray, blood sample, etc. and they all seems negative from any illness, but the cardio said he's fine. So they confirmed its gerd because he became better after avoiding gerd triggers and especially drinking lots and lots of water.
That's why besides from eating clean, i am also practicing myself to drink lots of water, though sometimes i get so full and the gerd starts to flare up. But i think it's a part of cleansing.
My back pain appears not as often as before. My arm pain and shortness of breath is completely gone. My only problem as for now is my dry cough. I also noticed that my symptoms are circulating. I mean, when i have cough, i dont have the arm pain. But if i have the arm pain, i dont have cough! I really dont understand. But as long as they are tolerable, i am fine and relaxed. I will keep on praying that our gerd issues will eventually get away!
Sorry for the long post. I believe we are all different, but it's worth a try! After all, medications have side effects :(