Sorry I've not been through this but did not want to r & r.
Just wanted to say that your mw would be concerned if she felt you were not eating enough for the baby. Also from what I've always been told the baby takes what it needs and it is generally you that suffers from lack of vitiams etc.
If you are really concerned about the lack of the vitiams then take some pregnancy ones.
I would try not to worry too much as long as you arfe eating something and you are having enough fluids.
Hope you feel better soon.