Review your fee agreement and the bills your attorney has sent you. All charges should be consistent with your agreement. If you have questions about particular charges, ask your lawyer. Frequently, charges make more sense after a brief explanation. If you can't resolve your questions regarding fees and charges with your lawyer you may want to have your bill reviewed by an attorney organization that will evaluate it for fairness.
Some states offer fee arbitration services for clients.
Finally, nothing stops you from hiring another lawyer to resolve the matter, possibly through additional litigation. If you feel that your lawyer has acted improperly or unethically, contact the Lawyer Disciplinary Agency in your state and file a complaint. Keep in mind that if your attorney used your money in an unethical way, a disciplinary action will not get you your money back. These proceedings punish unethical lawyers but do not necessarily provide a financial remedy to a wronged client. Be wary of an attorney who says that a case can't be lost.