I have had a bad headache on and off but mostly on for 5 days. been treated in er twice with meds, but no scans. i get dizzy and blurry vision and not like my normal migraines. also neck pain. could this be unruptured anuerysm i'm really worried?

Make appointment with your family doctor or preferably a neurologist if you do not need referral.

If you have history of migraine, often, over time, character of headache pattern and intensity may vary. This is absolutely not how aneurysms behave. A neurologist could provide prophylactic medication to break up what appears to be an emerging chronic pattern. Imaging might be reassuring but unlikely to provide change in therapy decisions.