If you believe you’re being treated differently than other employees on the basis of a protected characteristic, your employer might be discriminating against you. Observe how your employer is treating people in similar positions to you but who are of a different sex, race, or religion. This will give you a good idea if you are dealing with true discrimination or retaliatory behavior.  If your employer just isn’t very nice, but they’re not very nice to anyone, it’s probably not discrimination.