My agap is 2. is it a problem?

If you mean: "anion gap", it is an unusual number to know about yourself. It is a measurement of ions that have either a positive or negative charge: sodium/potassium are cations (+'s) and chloride/bicarbonate at anions (-'s). "2" is a very unusual result (reference range is 8-16 mEq/L) and I would highly suspect this is an error in the lab result. Not sure why you had this done but only ordering MD can help:)