Should I go to the ER for this persistent headache

Hi, I never post on reddit so this is new for me but I’m trying to decide if I should go to the ER today or if I should wait. I’ve had this persistent headache/migraine for the past 2-3 days, Sunday night I was out picking up dinner and when I got back in my car I had this sharp pain down my neck and my lower back and experienced double vision. I had to just sit there and wait for it to mellow out so I could drive back home. Then yesterday I was at work and started to get a headache, I took Aleve but then the same thing happened and I needed to ask to go home. My boyfriend picked me up because I didn’t think it was safe enough to drive. My headache never really went away after taking Aleve, I’ve had enough sleep, I’m eating and drinking more water. I’m just worried. I have a VP shunt and haven’t had any issues since 2016 which was my last surgery.