hi welcome tothis site.
read your prob. you feel headach at all day, nothing to worry about it, there r two reason
1. not having meal at proper time. it causes gastritisand it leads to headache. its the commonest cause
2. it may be due to migrane
. some associated symptoms with it are blurred vision
, intolrance to direct light, vomiting
so first u have to start heavy breakfast and lunch and dinner at proper time with some pain-killer tabs. after some days if u not feel good u should consult neurologist
for further treatment