Im also having sharp pains in vagina. Think its a bit early for pain down there just yet..!!!??
Im 36 weeks but ive had similar problems, tylonal can help to ease the pain. Nausea could be from a number of things, if youre taking prenatals you can start taking them right before you go to sleep, allergies and other bugs are going around-drainage can cause nausea- zyrtec is safe to take and can help, also a nasal spray. As far as being over exhausted, you could be anemic- thats what caused mine- they determined it by a blood test and gave me iron supplements and its helped tremendously! Hope this helps!