Could somebody comment and give me advice

Ok so I’ve been having this constant headache since last week Friday or Saturday. Idk what it could be but it’s starting to freak me out . I’ve never had headaches this constant before. My period doesn’t start until 6 days from now. I took my temp to see if I had a fever and I didn’t have one. Idk what to do or what to think. Of course I’m trying to think positive but it’s just annoying me now