loupop99, I don't know what kinds of things you are refering to that you feel like you have been hypersensitive to, but I experience this too and I think it is part of me and my difficulties. Sometimes it feels like a tension that needs to be broken, and when it is broken I can relax and few things get me stirred up.
If I can be aware of when it is beginning I can sometimes find the what it is that started it all. Something I am trying to keep from surfacing, from my awareness, from having to think about it and feel it...