respiratory or neurological?

symptoms mimic chronic CO poisoning, but sensor never detects level above 10 ppm

1. constant deep, dull, boring headache with frontal muscle tension and muscle stiffness/weakness felt (if I raise my eyebrows and hold it for 5 seconds the muscles stay intensly contracted, marked feeling of pressure in skull when I activate cranial muscles on the top and forehead.)
HEAVY HEADED FEELING, a weight on the head, brain is being pulled down into neck

2. shortness of breath which is actually WORSE when resting, and improves with activity or exercise....feeling that throat is swelling shut and air is being restricted, feeling of choking, AIR HUNGER (cant get a refreshing breath deep enough), lungs dont feel "elastic" enough

3. constantly dry and blocked nose, with a feeling of pressure or swelling deep behind the nose. swolen turbinates very persistant, nasal lining was bloodred when this started

4. Vertigo

CT BRAIN, MRI, MRA, MRV, EXTENISIVE BLOOD TESTS (including ANA, LYME, LUPUS, TSH), RADIONUCLEOTIDE BONE SCAN, CHEST XRAY, PULMONARY FUNCTIONS, ARTERIAL BLOODGAS, ECHOCARDIOGRAM, EKG, EEG, ENG...

ALL TESTS NEGATIVE!

I should mention that I used to get frequent syncope but it completely stopped at the same time when I started feeling this way. I also get frequent acid reflux.

should i get a spinal tap or other additional heart/lung testing? i've been very sick with this for well over 10 months now. I am 5'10, 240 lbs, and 28 yrs old,

If I was YOUR patient what would you suggest?
Please, please help!thanks!

[National Jewish]

You should get some objective measurements:

1. A carbon monoxide (CO) level with a different sensing device.
2. Pulmonary function tests (PFTs).
3. An exercise study.
4. A mental health evaluation, since your symptoms suggest tension, anxiety and panic disorder.

[john100]

PS,   I also had negative allergy testing,   and, I also occasionally "swallow wrong" food or drink that causes me to gag, this goes right along with my shortness of breath at rest (but improves with normal or intense cardiovascular exercise).   I would just really like to know if this is neurological, psychological (doubt it), or respiratory, or other problem and which direction I should take..I have allready seen a headache specialist, an ent/dizziness specialist, and my GP at a university with no answers.

[john100]

PS- sinus CT was very clear and normal