Frequent headaches on top left side. Should I see an MD?

Iíve been having frequent headaches lately and I donít know why. At first I blamed the weather because Iím not really used to it yet. I moved from the west coast to the east and I must say the weather is definitely different here. Itís like a foreign place to me but not at the same time? Anyway, the headaches last for a few hours and goes away but it would hurt again sometimes. I just took OTC pain relievers. Itís getting annoying, though. I wouldíve to slow down with work or with reading whenever thereís that throbbing on my head again. My friends said itíll pass, some colleagues suggested maybe itís just the stress of moving and adjusting. Should I just ignore it or do I go seek a doctor?