If you can get medical evidence to say this was a direct cause then you may have a claim.
You need to get a Solicitor to write and set out your position asking for the position to be reversed and/or compensation.
I think its unfair that you have done things whilst under this condition and BAFA want to hold you to account. You should not be liable for any actions, violent or not, against someone else if you are disabled. You should be able to do whatever you want with your condition.
If they refuse then you can issue proceedings for disability discrimination. You can do this by completing form N1:
The matter will go before a Judge who will decide whether their disgraceful behaviour is illegal and unfair.
You could also complain to the Equality Commission which can investigate and prosecute. Their website is:
Can I clarify anything for you about this today please?