Hi i am currently using a daily pulmicort nebule that is mixed in with a 1.9g sachet of sodium chloride and i flush my sinus out each morning. I have been on this for about 2mths. Could this have effect on my menstral cycle.. I have endometrosis and they usually last about 7 long days. Last cycle lasted for 3 days and were very light and this mth i have missed them altogether. I am 45 and definitely not pregnant.