Having continuous headaches for 4-5 months is not normal and should be properly evaluated by a doctor, as long-lasting headaches can be due to common causes like chronic tension-type headache, Migraine, eye strain, stress, poor sleep, or sinus problems, but sometimes may also be linked to high blood pressure or other underlying conditions that need treatment. You should avoid self-medicating frequently, as overuse of painkillers can actually worsen headaches over time. Instead, consult a physician or neurologist who may recommend a detailed history, physical examination, and possibly tests (like eye check-up or scans) if needed. Meanwhile, try maintaining a regular sleep schedule, staying well hydrated, limiting screen time, reducing caffeine, managing stress, and keeping a headache diary to identify triggers. Seek urgent medical care if you develop red flag symptoms such as sudden, very severe headache, vomiting, vision problems, weakness, or confusion.