Hi there, thanks for asking. You are true about the relation between deviated septum, problem in oxygenation and headaches
. For some people deviated septum cause oxygenation problem at night, especially if they have enlarged tonsils or any other factor that cause breathing problem. For example, if you have allergy
or you get cold
breathing problem become more significant. Bloated tummy could be as a result of breathing through the mouth when your nasal canals are obstructed. I suggest that you check this point with your doctor. I wish you a good health.