hospital or no?

I'm only asking now because I have to wait til my husband gets home to go anyways. But, yesterday I had a pain and numbing in my left arm (which is normal for me) but it persisted through tylenol and all the way into today. I'm also nauseous, light headed, my vision is blurry, headaches, the whole nine. like I feel like death. I'm 27 weeks today and I'm starting to get concerned. any mommies experience this or should I just go to the hospital?

UPDATE: I was dehydrated, they gave me an iv and now I'm feeling much better.