Head pain that won't go away

[JHChicago]

Hi everyone. So last Thursday, I had a headache all day. It started in the back of my head, so I figured it was just a tension headache. Throat was a little scratchy, so I thought maybe I was coming down with something. The next day, I felt better, but the headache was still there. Pretty dull though, not as noticeable as the day before. But I was very blah throughout the whole day. Irritable, and just didn't feel like myself. I went to the gym after work, but after my run, I felt very "out of it." Attributed it to me not feeling well. Saturday rolls around, and I'm a bit better. The headache came and gone throughout Saturday and Sunday. But I also felt tingly, and my face at times felt numb. Dizzy at times, lightheaded. Like my head felt heavy. Very foggy and unbalanced. Sunday evening, I ran on the treadmill, and afterwards the headache was back and not dull. Really scared me, as I've never gotten a headache after working out. I should mention that I suffer from anxiety and vertigo. So naturally, I worked myself up. I allowed myself to self diagnose using the internet, and convinced myself I was having a stroke or was about to have one. I barely slept Sunday night, kept waking up in sweats, and fear that something bad was going to happen. That I had some brain aneurysm that was going to erupt. I know it probably sounds crazy, but it's so very real for me at times. I spent all of Monday in bed, under covers sleeping. Nauseous all day, only ate a piece of toast the entire day. It was a beautiful day out, and I couldn't get the energy to get out of bed and enjoy the sunlight. The headache was more behind my eyes at this point. Today, I'm feeling better, but my face feels like pressure on it. Under my eyes, especially. But there are times it feels like it's in my forehead or the back of my head. Feels puffy, but doesn't look puffy. I have a Dr appt for for tomorrow, but should I maybe go to urgent care or the ER? Anyone else experience this stuff? Is it just my anxiety getting the best of me?