2. Bloodshot Eyes
A brain aneurysm coming on will likely make you feel that your head is about to explode, or you might just feel it as a little bit of pressure that occurs behind your eyes – but there are a fair amount of cases where people experience some of the symptoms but feel nothing at all, and when a brain aneurysm occurs they were not looking at the symptoms that could have caused it.
You should always look at your eyes if you are going through a migraine or headache – note whether or not your pupils are reacting normally to light (if not, you are looking at the potential of a head injury) and your eyes might also be bloodshot to go along with it – if you can’t pin this down on having rubbed your eyes, then the symptom could be pointing to something that’s much more severe wrong and you should make an appointment with your doctor immediately.