It sounds like you are probably being discriminated against but I'm not sure it is in a way that would give you a claim to pursue against the company. From your narrative the bank hasn't taken any significant action against your employment, denied you a promotion, or compensation and although the comments and scrutiny is discriminatory on an unlawful basis it is not so serious that it would give you a viable harassment claim.

I'm sorry you have had to suffer this experience but the extent of your remedies is likely leaving and finding employment at a better employer. You may want to file a charge of discrimination with the EEOC or your state's civil rights agency and see where that goes. It wouldn't hurt to talk to a lawyer in your area either.