26 weeks with terrible all day sickness still ]:?

I am 26 weeks (well in a few hours I will be) and I still have terrible all day sickness. I have tried soda crackers, Lemon Lime soda, Ginger Ale, taking it easy... I have tried just about everything that has been suggested. I was wondering if there is anything that you tried that may sound bizarre or just a little obvious? I have vomited so much today that my throat is a little puffy in the front. ]: My body obviously doesn't like to be pregnant. Also, I feel a little warm; could I be catching something or could it be from vomiting so much or just allergies?