I have extreme fatigue that hit me during the day along with headaches after eating. i'm 32 and overweight. what could cause this?

Could be: thyroid, hormones, pancreas. Please see doc who can examine and do blood work. Lifestyle changes such as exercise w/doc's supervision can also help. Peace and good health.

Pre Diabetes?: Pre diabetes can often cause episodes of hypoglycemia which could cause fatigue and headaches. See you physician who may order a 5 hour glucose tolerance test. In the mean time eat healthy small portions and avoid refined carbohydrate. do not skip meals.