If I were you, I wouldn't wait any longer (A female's body will give off signs of something wrong before anything will happen, but a lot of women today won't listen to their bodies so that they can prevent hospital stay in their future). Since you're having dizziness and nausea along with your pain, you really need to see a doctor. You're body is trying to tell you that something is wrong and that you need to get it taken care of very soon!
My cousin had stomach pains and she ignored them for a couple of weeks. One day when she went out to eat, her pain got worse and eventually passed out - her gall bladder had exploded. Well, to make things short, she went into surgery and was able to get all the "gunk" out of her system before it poisoned her and could have died.
I'm trying to say that you really don't need to wait this out if you have been experiencing this for a couple of days now. You really need to visit an income-based clinic to see what's going on. Also, several clinics within Nashville will let you make payments if you pay a percentage upfront (around 33% or so).