Greetings,
Sorry about your concern. BE assured disc bulge. Degenerative change you described should be least of your concern. They will never trouble you unless your muscles are strong.
Next Steps
hire an physio who can correct your posture. just by correct your posture by sitting straight or correction at lying position will not be permanent until you simultaneously do exercise to correct your posture.
Health Tips
if unable to find a solution contact me will assist you to bring normalcy to your posture.