In order to make a valid legal claim about an employer's verbal abuse, you must show:
1. That the abuse was intentional and intended to inflict extreme mental distress (Intentional Infliction of Emotional Distress: IIED); or
2. That you have (a) received professional mental health or medical care for your distress (depression, anxiety, etc.), (b) notified your employer of your condition; and (c) that the employer has continued the abuse after that notification (disability discrimination).
From what you describe, you may be able to make a valid claim for #2 -- but, probably not for #1 (because the abuse is not sufficiently extreme). However, you need to be able to document your proof. That is, you must be able to prove that you have seen a mental health professional or physician, and that you have notified your employer of your condition (in writing). So, if you haven't done both of these things, then now is the time to start. Without this sort of careful proof, your claim will fail.
Once you have that proof, you can file a complaint with the California Department of Fair Employment and Housing (DFEH) -- or, you can hire a private employment rights lawyer to demand damages or sue.
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