I wouldn't do anything. I Am just like you and I totally understand the sensitivity to sounds etc. It is from trauma. I know work would tell me to deal with it if I asked for special accommodation. You have valid issues you are dealing with but asking for others to keep quiet may come back to bite you. I would feel bad if anything happened to yr job because of it. I do wish you the best of luck. I agree with others that you should ask for head phones as a reasonable accommodation.

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