Slight headaches everyday?

so for a couple days now ive been waking up with slight headaches, and it seems like it lasts the whoole day, its like not hurting or anything but its hella annoying. i looked up somewhere what could cause it and they said bi=eing anxious about something can trigger it, or the way i eat. andd im leaving my state in a few days to go visit my family and im HELLA excited about it. like i think about everyday til that day is coming. could this be a reason too? and i will admit i dont really like to drink water, i havent had any in a while, can this also be a reason? and if i ask my dad to go see whats wrong he'll be all like "theres nothing wrong, you dont need to go to the hospital, blah blah." hes so ******* ignorant. but yeah can i get som ehelp please? anyone??