um maybe you are not aware of something.....here in the USA because of ADA laws and privacy laws, employers can not take into consideration someones mental problems. they can not even ask you if you have a mental or physical health problem. if you choose to volunteer that information, they can not take those things into consideration where the work is concerned.

because employers can not take into consideration someones mental or physical health it limits what they can do when they do know of a person who is mentally or physically challenged...

all they legally can do is address the issue, a teen ager scared you (which is normal teenager behavior along with such annoying things as burping, arm pit noises, swearing and anything else that will get a reaction from adults), sent you into a panic attack which resulted in you almost hitting the teen. the solution limit your time with around that triggering thing that caused your problems (less hours on the job until you can have your problem back in control again so that the next time a teenager does some annoying teen ager behavior near you, you wont have a reaction like this again) ADA laws says they must supply reasonable accommodation...in this case that what reasonable accommodation means being around teenagers trying to scare you triggered your mental problems so the accommodation is less hours so that you are not in prolonged contact with the teenagers.

you can try talking with your employer again but I wouldnt be surprised if she said something like this comes with the territory of this job and if you cant handle it, do your job then there's the door. she cant fire you because of your mental problem but she can fire you if you are not able to do what the job requires (which in this case is being around/ working with these teenagers with out almost hitting them)