A bad headache can be one of the most debilitating experiences a person can go through. There are many synonyms for this unpleasant sensation that can help describe its various qualities. Some of the most common synonyms for a bad headache include "migraine," "throbbing headache," "tension headache," "cluster headache," and "sinus headache." Each of these terms describes a different type of headache, with different symptoms and causes. No matter what synonym you use, the important thing is to take care of yourself when you experience a bad headache. This can involve taking medication, getting rest, drinking plenty of water, and avoiding triggers like stress and caffeine.