I have been having these sharp aches in my head they last about 10-15 seconds...

[Simply me]

...at a time back to back? it's been almost a month and they come on my left side of my head right side and back of my head,i don't understand i don't think the doctor knows what she is talking bout because nothing has worked im so afraid,maybe it's my decayed tooth but i don't know some one please tell me something