My vagina is always very uncomftible and itch what would be the cause?
you might have some sort of yeast infection. they are fairly common
depends on how long it has been itching.
Check out this site to see if this might fit you: http://www.medicinenet.com/yeast_vaginitis/article.htm
if it does, do talk to a doctor, they have medication that works way faster than the over the counter stuff you get at the grocery store.