Since about 12 pm iv had a really tight chect and its kind of painfull. i alos keep getting very dizzy?

See a Doctor. Anything that has to do with Chest Pains needs to be checked out ASAP. You don't mess around with that. The dizziness could be to blood sugar, but obviously you don't know. Regardless, get to a DR very soon. It's always better to have it checked out then not. Good luck