So what do you think ? Anxiety?
It's so crazy I thought I was crazy when I was feeling he brain fog... Exactly like you said it's like your not there like your body is moving and your not really going with it and the pressure is so bad gets in my forhead also.... I went for head scan and so many blood test but they say it's anxiety...I also get a tingling it burning feeling in the back or top of my head.... And I can't concentrate or focus I'm always spaced out.... I found that when I take my vita fusion multivitamin I feel a little better
If your suffering so much I would just get on anxiety meds until it goes away and what I did last time in 2011 is the moment I felt better I started exercising / dieting / supplementing with essential vitamins and minerals / getting enough sleep / stopped overworking and when I got off the medication I never had anxiety again until 5 years later when my lifestyle messed up due to overworking.
How long did u take the meds for
4-5 months months but I think I could have been off in 3-4 months with no problems
Ok so I went to the doctor today.. Doctor said its just anxiety and my blood work saids my thyroid is good / vitamins / minerals / no stds / no cholesterol issues / hormonal / neurotically issues so I'm pretty happy that it's not a thyroid issue as I was scared I'll have to go on that synthroid crap. He prescribed me Paxil 20mg twice daily.. No sedative 
but I'll have to push through.. Thanks everyone for the help/advice
hey there! so i've been experiencing the same symptoms for about 5 months now. mine all started after some bad anxiety in which i felt severe depersonalization which was by far the worst experience of my life. After it cleared, I started to have this constant pressure/brain fog. I'm wondering if I still have DP just not with derealization, and if it is all anxiety? because before experiencing that, I had always been perfectly healthy. I changed my diet and stay as calm as possible and i seem to be feeling better very slowely, but surely. I've also read stuff about how the mind can distract you with physical symptoms because of repressed emotions that are too powerful. I must admit, im desperate for relief as well, but staying distracted and busy seems to help with it a lot. im hopeful that it will eventually pass, but im wonderig if that initail anxiey just rewired my brain or something. i seem to be slowly creeping back towards feeling like my "normal" self, though it has not been easy. anway best of luck! but i would also look into depersonalization. its possible i still have it, but a more mild case.
also if you research depersonalization, you will see that the head pressure is a common symptom. Derealization (when your surroundings look unfamiliar, or very hazy) is a SYMPTOM of it. Which makes me think that its possible that when i learned to control the anxiety more that symptom went away, but the feeling of detachment had stayed. i do have moments like you, where i feel free and normal, but not often. however lately, its been a bit better. im not giving up! I just moved and am going to hopefully start my dream job, so at least i have that to look forward to 
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I'm still suffering with the same thing.. It has gotten maybe 20-30% better so the good thing is I don't have to rely on tynenol or anything. A new symptom is 24/7 ringing ears and yes I have read it is all a symptom of stress / anxiety depersonalization. I went to another doctor and ER again they said its just stress and anxiety.
I was told when the stress response is gone.. Everything will leave.
I have looked it up I'm happy it is that and not health issues. I have 24/7 ringing ears and I saw it is a symptom aswell this is horrible. It took 3 weeks to see an improvement so I'm hoping it leaves soon 