When your system starts to fall aprt like this it is worth considering whether the cause might be stress/anxiety related & remember that stress & anxiety can be something we're unaware of. So just because you don't feel stressed or anxious doesn't mean your body doesn't feel it!!!!

I would try taking some valerian, vitamin b, &/or doing relaxation/meditation/yoga & taking long hot baths with candles burnig & essential oils etc. Also long walks can be destressing.