Depression

This is going to sound weird but do you drink lots of water? I deal with depression as well and for me when I get dehydrated it gets worse. On days where I'm really busy and forget to drink H20 regularly or drink soda I can slump into a real funk quickly.

It's also great with the back pains (herniated discs). I'm not an M.D. but it's definitely a cheap and easy remedy worth a try.

PS Hope you feel better.