I get much worse at night too and can only guess why. Maybe it's feeling confined and unable to feel safe outside because of the darkness and it's when most of the bad stuff happens. Most people die at night too. Night definetly feels bad to me. I love the sun in the daytime (I live in California). I love the morning and the new day. Or maybe it's something chemical. One can only guess, but I do feel the same.
Attekus