Hi Christopher,
I'm a music teacher, and not a doctor, so I have no idea how to interpret your blood results. However, based on your symptoms, I have a few thoughts on things you might want to consider getting tested for.
Based on your experience in the forest, I think you should get tested for Lyme, its co-infections, and mycoplasmas. (Mycoplasma pnemoniae and chlamydia pnemoniae are responsible for 50% of asthma cases. The respiratory symptoms can be resolved if the root cause is treated correctly). The test for Lyme is an antibody test, and it can be innaccurate 60% of the time. A Lyme Literate MD should be able to interpret a test through the IgeneX lab that will yield more reliable results.
You definately have something neurological going on. Lyme produces neurotoxins, so does mold, pfiesteria, and ciguatera (in Florida), and pesticide exposure and heavy metals like mercury also do neurological damage.
Have you ever been checked for radiation poisoning? Hair falling out is often a tell-tale sign of radiation poisoning, but given your HPTA issues, it could be from that. I don't know what causes HPTA dysfuction, but said dysfunction could be responsible for your low testosterone and adrenal levels, and it would trigger a number of other symptoms because the endocrine system is critical to correct body function.
Have you been tested for parasites or pathogenic bacteria? There are two labs in the U.S. that do in-depth testing in this area. The one I have used in the past is: www.parasitetesting.com. Test results must be sent to a medical practitioner, but you are entitled to a copy after the doctor gets it.
Are you sure you don't have a mite infestation (harvest mites, for example)? Mites are especially attracted to people with ill-health for some reason. Dermatologists are clueless about this sort of thing unless they capture one in a biopsy, and the odds are that they won't. If you feel a red bump starting, put clear tape on it and see if you trap anything that's almost impossible to see--that's how small mite nymphs are. See if your local farm bureau has some master garderners or an entomologist to identify it under a microscope.
You can have a gluten sensitivity (even extreme) without technically being Celiac. I have gluten sensitivity, but not Celiac. Celiac is an autoimmune disorder with a genetic component. It is also possible that food sensitivities are causing the red bumps on your skin.
I don't know anything about Sjogren's--sorry!
I hope this is helpful. Best wishes to you!