[spokeshave]

Hi Bagster

If you have low O2 problems, this is sometimes caused by being bent over while standing or walking....causing compression of the rib cage.

If you are in some physical therapy, get the trainer helping you work with your lower back muscles.

Good lower back muscle strength helps support the body weight keeping it straight when standing or walking.

A gym will have a Nautilus machine for this.

[spokeshave]

...And Bagster....check your sleeping...do you snore...can cause lower O2 levels

Maybe a C-pap machine is required....ask the doc.