Hi,
Noted the history about a 31 year old female having had nasal trauma at the age of 9-10 years, now developed nasal blockage on lying down, wants to know whether oxygenation to brain is hampered.
Yes, this is sleep apnoea and can caused reduced oxygenation to boty and brain.
Hence I would advise you the following:
Consult an ENT Surgeon for clinical evaluation, ENT
Endoscopy, and MRI or CT scan of the nose,
nasopharynx,
sinuses.
All this will an exact cause of your
nasal obstruction which is enhanced by lying down.
The most probable causes are antro-choanal polyp, deviated
nasal septum or any mass.
May need corrective surgery for cure.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. T. Chandrakant, ENT & General Surgeon