Migraine? Tension? Vertigo? What is going on with me?

Hello. I'm new to the forum, and just wanted to see if anyone could help or give me any comfort as to what is going on with me lately. Fro the past month, I've been getting these headaches. They aren't severe or constant, but they won't go away fully. I suffer from anxiety and vertigo as well. I've gotten headaches in the past, but this time, it felt different. I got them after I worked out too. So that's when I really got scared. I just had this fuzzy, unbalanced, lightheaded, out of it feeling all day. At times, my face would feel numb too. I went to my doctor, who told me if was just a migraine and/or tension headache, and that I was letting my anxiety get the best of me. She did however order an MRI since I got a headache after working out. The MRI came back normal. Thank goodness. However, the headache/vertigo feeling never went away. So I went to see a neurologist. He said it was Migraine associated vertigo (MAV). He gave me a stronger migraine medicine, but again, still couldn't knock it out completely. So now I have a CTA scan on Wednesday.
I'm freaking out about it all. How likely is it if my MRI came back normal that something will be found in a CTA scan of my brain?

I feel so nauseous and dizzy all the time. Like a fog over me. It's been extremely emotional and frustrating for me, not knowing. If anyone has any advice, or suggestions. Or could help me figure it out, I would be so grateful.

Thanks!