Had Nervous Breakdown Due To High Stress, Anxiety With Headaches And Chest Pain. High Readings Of ANA. What Does This Mean?

My name is Sue. For the past 2yrs 11months, I had a bad incident in my home, the council had engaged a water company to reselve the old sewer line, anyway we started to noticed strange foul smells, experience over flows of dirty waters, raw sewerages waters, clean up our own mess after toilet useages, and kitchen sinks overflowing and the laundry tub overflowing and the 3 toilets and .3 bathrooms overflowed. Myself and family members where searching the house as waters were flooding the inside of my home, and we found the toilet bowel was pouring out raw sewerages like a huge fountain, and I got soaked in it and so did my 2 fam members. I had a nervous breakdown at work place and had 4 months of work where I was to rest due to very high stress levels. Having counceling treatment for anxiety, panic attackes headaches, high stress levels, constant chest pains, sleepless nights and worried all the time about my health and the state of my home of repaired to this very day. I have had 2 blood tests to show high reading of ANA 644 and I did not understand this at all