Constant headache for almost 24 hours. ibuprophen helps slightly. light sensitivity and weak feeling. should i be worried or is it just a migraine?

Sounds like migraine: It sounds like a migraine. Migraines usually cause light sensitivity and weakness, and can last for hours to days. Non-steroid anti-inflammatory drugs (NSAIDs) like ibuprofen can be helpful. Taking ibuprofen in combination with Tylenol (acetaminophen) may be more helpful. Lying still in a quiet dark room and trying to relax after you take medication is advisable. For more info see: http://understandingmigraine.blogspot.com/