That sounds like an awful situation you had to experience. I would recommend you search for an independent therapist in your area that specialises in ADHD.
They will be better able to be detached from the situation and be able to help you with any problems these events have caused you.
It is also worth looking into speaking to an organisation in your area that specialises in arranging work place adjustments for your conditions as they will be able to help you navigate the legalities behind workplace discrimination.
I mention this as disclosing a disability can result in traumatic events as you have experienced. Knowing your rights will help you make informed decisions on when to disclose, who to and how to ensure your best interest are accounted for.