Is there any research on the link or difference between Hyperventilation Syndrome and Vitamin D Deficiency? I was low of Vit D about 2 yeas ago with levels of 11, went on tablets and it went up to 96 but then slacked off, symptoms were on and off throughout so went to see a Rheumatologist who diagnosed me with Hyperventilation Syndrome (air hunger). I had a deviated septum and was mouth breathing (as I had done all my adult life – i'm 46). So In August I had a nose operations to straighten the septum, however my symptoms are still there and my Vit D levels are 23. If you compare the Vit D deficiency symptoms to the Hyperventilation syndrome the two are pretty much identical and can be overlaid.