I had dns with maxillary and ethmoid sinusitis from past 14 yrs and migraine from past 5yrs I'm feeling tightness on top of head i took complete vitamins and mineral (
calcium phosphorus magnesium vit d zinc vit
b12 iron)test among all those i got
Vitd=28ng/ml and iron=36ug/ml and vit b12=289pg/ml this tightness feeling could be what reason does these def cause this for me everytime iron levels are too low