Hi, thank you . I am in Palo Alto, California.
My symptoms are:
sensitivity to light and sound
derealization-disorientation
head pressure to migraine
light headedness upon standing
Worst is my cog fog and disorientation type of feeling. (fuzzy head)
These are also many of my worst symptoms, although I don't get the migraine, just terrible pressure and fuzzy type feeling. So far, I haven't discovered the cause aside from it not being sinusitus. I do have POTS, which is definitely something you should investigate with the light headedness upon standing. POTS involves circulatory issues and I think sometimes the head type symptoms can be a result of abnormal blood circulation in the brain.
I had a tilt table test at a cardiologist to diagnose it, although I only saw him that one time. There are medications for it, but I haven't tried any yet. I'm going to ask for a referral to a dysautonomia doc to talk about meds in detail (I'm not sure which speciality, but it's someone who is knowledgeable about the autonomic nervous system). Try googling dysautonomia specialist palo alto california if you think these might be some of your issues.
Note that some types of POTS involve BP changes (fainting, pre-syncope symptoms, black dots in vision) but some involve just tachycardia. Poor man's tilt table test is a great way to figure out if tachycardia is an issue for you - if positive, just ask your GP about it and say you'd like a tilt table test.