worried....

So since Sunday afternoon, I’ve been feeling run down, and have had quite a tense headache and I’ve lost my appetite. When I wake up, I sometimes feel okay but when the day progresses, I do feel more run down. Right now I just feel achey and I have a headache and I’m run down. I’ve googled ‘Brain tumour symptoms” cos I overthink so much but obviously that’s not gonna do me any good. My mum says she won’t make an appointment at the doctors cos it’s just a virus and will clear up. But I’ve been feeling run down for the past five days now. Anyone experienced the same thing?