I feel that way sometimes when sick or not enough rest, it could be you're getting sick like the flu or cold, it happens to me, or it could be that you need to get more sleep than you are getting already, it really makes a difference, trust me i know, when i do'nt get enough sleep and it builds up night after night of less sleep i feel like going on the war path.
Pray also, i know people suggest this, but truth be told, the God of the bible is real and he listens, also try going to bed before 10 pm anything after is like getting 2 hours less sleep.
I hope you feel better my freind

God Bless.