Thank you for your question and I am sorry to hear about your situation.
If a stroke were confirmed by your physicians or some other medical observation that would confirm your loss of cognitive abilities during your employment and continuing onward, I believe that you would have a demonstrable claim for employment discrimination in violation of the ADA. That being said, it sounds as if the evidence is not sound on that note as the medical tests were inconclusive. This would make your claim more difficult.
Further, the fact that you lost your temper during the evaluation and that you had allegedly accepted funds from the honorarium in violation of the law, adds to the argument which would be put forward by your employer that the termination was not due to any disability but based on other permissible factors.
In short, under the circumstances you are describing an ADA claim for employment discrimination would be a hard case.
This answer is provided for information purposes only and should not be considered legal advice. Please visit a local employment or civil rights
attorney for a complete evaluation of your claim.
Please let me know if there is further information I can provide you.