Need advice on whether or not I have standing for wrongful termination and discrimination/retaliation.

I was employed from 4/25 to 10/26. I have been epileptic all my life and was also diagnosed with cancer recently. I was allowed to work after having a seizure and was allowed to drive home after approximately 6 hours of work on my feet in public (I manage a restaurant in a boutique hotel). I have no memory of driving home or 90% of that day. Since I advised my direct supervisor about a possible recurrence of cancer, it has been an abusive workplace until termination. There is a documented /video record with a witness of being singled out and unfairly reprimanded during my 16 months of employment. I am 57 years old. I was asked if, given my condition(s), do I think I can successfully perform my tasks at work. No written or verbal reason was given for my termination.