CAN A TENSION HEADACHE HARM ME?

I have been getting this very bad headache for days and I'm afraid that im gonna pass out. I worry about it constantly, and I also have anxiety on top of that. I am terrified I will pass out, even though I have done it quite a few times in my lifetime so far. Its just this underlying fear, and I can't get rid of it. I am scared to go outside, let alone go food shopping, or anything away from my house (comfort zone). I am trying to manage my anxiety at the same time, but these head pains (pressure in the back of my head) is making it 10 times harder. I am always scared, and fearful of something happening to me in front of other people, and I am scared to drive too now. I take Paxil CR for my anxiety, and Tylenol for the pressure, as well visit the chiropractor. That does seem to help a bit, but not to where I can go for one complete day without the pressure. Can anyone suggest something that worked for you if you have had tension head pain before? Thanks.