For over a week i have been unusually tired and having mild headaches constantly my lower abdomen also feels bloated what's going on?

Any number of things: Multiple symptoms from different parts of body for a week without any of them severe points to a virus, stress, hormone. Migraine can bother the stomach and make you tired but is usually more severe. Make sure you are not pregnant and if symptoms persist see PCP. Good health.

Symptoms: Are not specific will suggest an evaluation by your primary MD. Bloating may improve with increased water, activity and healthy diet