Verified answer

The slurred speech is especially a problem, unless you are drinking alcohol or taking some kind of drug (such as Inderal) which can cause that. Otherwise it could be signs of a stroke or a transient ischemic attack. Tiredness and headache in and of themselves are symptoms of many things, so I am using your symptom of slurred speech as the primary symptom that needs to be looked at. Best wishes to you as you figure this out.

The most common cause of headache is dehydration - try drinking more water- not coffee, not pop, just good ol' water, and see if that doesn't help. Eyestrain can cause headaches- like from sitting staring at a computer or television screen. Try looking up and looking around so you can use your far vision too, say one good look round every 5-10 minutes. Migraines are usually accompainied by an "aura"- a change in your vision, like tunnel vision or bright sparkles, and usually nausea, sometimes vomiting, too. Most migraines have a trigger, like chocolate, too much caffeine, allergies- it takes a while to sort out what it is. There are a number of treatments for migraine - including naturopathic and homeopathic, but migraine is a diagnosis only a physician can make- maybe a family practice doctor or better yet a neurologist. Headaches are often caused by stress and tension, too. Look into some relaxation tecniques like yoga, guided deep breathing, progressive relaxation, and best yet - head, neck, and shoulder massage!

Indicative of vascular problems in the brain. See a doctor.

See a doctor