I have had and still have all these terrible side effects but no ...

I have had and still have all these terrible side effects but no one seems to know why I swell so much.My hands and legs.i am 7 months pregnant and my gyno says I am dehidrated and need to drink more water then I notided(DUH) the main ingrediant in singulair is salt!!!!SINGULAIR OR (MONTELUKAST SODIUM 10 MGS).Hello!!!!No wonder I am so Bloated and Swelled!!!Any one else have this symptom????I have been on singulair for about 8 years now and will be looking for a natural alternative to treat my asthma after I have finished nursing my baby.Good Luck Ya'll!!!!!!