If you get a chance, maybe see about getting your vitamin D levels checked. I know my mom was feeling kind of like you a few years back, and after having some blood tests done, her vitamin D levels were crazy low! Mine dip too (I guess that's what I get for living in Pittsburgh) and I start to feel like the way you're describing.

It couldn't hurt! In the meantime, take care of yourself! You sound stressed to me, but it sounds like you already know that! If necessary...

"And death is at your doorstep
And it will steal your innocence
But it will not steal your substance
But you are not alone in this"

“My ability to turn good news into anxiety is rivaled only by my ability to turn anxiety into chin acne.” - Tina Fey