Hi, can I ask what age you are? Have you consulted the doctor about your odd sensations?
I have fibro and 2 auto immune diseases among other things but I have to say I have never ever felt so bad or odd in mind and body together.
I too have had a heightened perception of sound, many things seeming just so very loud, the supermarket especially even the pip of the scanner is terrible. I feel totally overwhelmed in a busy place, or where there are multiple sounds at once. I feel I need to be alone away from the hustle and bustle.
I cant bear the smell of the bin even when its in theory clean.
I have never ever felt so tired, like my eyes are exhausted and everything is so bright. I cant bear the sun in my eyes now either.
Like you last year I was just fine, strong, sensible, and coping with everything.
I hope that helps a little.