Brain feels heavy and i feel depressed?

everytime i move my head it hurts as if my brain is moving, also feels like it is expanding, when i make my eyes look sideways i also get pain there and my head feels very heavy, i feel drousy and my head aches around where my brain would be, also i have felt very depressed lately, i do not have diagnosed depression but i have found myself crying for no reason, could this be related to my head pains? thankyou, becky xxx