Do you have some family or friends that you could take some time off to think things through ? I had a mental break down at work and wound up IP. I then decided life isn't worth living that way and luckily my wife made enough and some other family helped with bills and I was able to just take 3-4 months to RECOVER. Just a thought.
If not, do you have anything that could help with the stimuli? Do they allow you to wear headphones ? Get some noise canceling headphones for when you are working.
Don't, I repeat, don't feel "ashamed" or "belittled" going in on Monday. You had every right to request that and if someone has a problem with it, guess what, it's their problem!
Hope this helped and I'll be continuing to think of possible answers.

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