I have pectus carinatum/pigeon chest which affects my breathing? I also believe it affects my sleep which has always been bad?

[Adlon57]

The deformation of my chest caused when aged ten I had meningitis, have had JME epilepsy since 14, in 2017 I fell off my exercise bike onto the bike, because I was the only witness, I had to assume what damage I has sustained, it was at least five ribs around the sternum, in 2022 after a radiation session and decapeptyl sr injection for misdiagnosed Prostate Cancer it weakened my rib cage structure "untreatable", I have mentioned these before on HU not looking for blame, too late to do anything about it as I am now aged 68, BUT could this be a major reason for my bad sleep patterns, which are presently taking at least three hours EVERY night just to get to sleep! Would some sort of oxygen supply help? My chest is deflated on my right side, ironically my left side including my heart are "good and strong"? Any suggestions would be gratefully received👌