Hi I'm A 28 Year Old Male I Had An

Hi I'm a 28 year old male I had an odd headache today and it came on as i was driving home from work. I have been looking at possible symptoms. The headache was more on top of head towards back but was not too severe but noticable. I'm kind of panicing wondering what it is. Could it be a possible brain anerysm? I'm weighing my options and wondering if i should go to hospital.