Hi I'm new to the site, but have probably had mg years b4 I was diagnosed. I also have lupus which came probably 10 yrs b4 mg. I'm middle aged female . I try to keep active which I think helps. I was put on 24/7 oxygen a couple yrs ago . As my neurologist has said not many people w/ mg have chronic low 02. I wanted to asked if anyone else here is on oxygen? Look forward to meeting u all and reading ur post. Ty for any help