I've just returned from vacation and found this thread.

It will take me a while to tease out some info for you.

My initial questions are these:

1) How many endoscope procedures have you had total?
Did you know there are consequences to endoscopic procedures?
The equipment may be contaminated and information is coming to light to on this problem. Your tongue issue may be due to the procedures...a consequence of damage in the mouth or back of throat.

2) were you tested for parasites? Did you have elevated eosinophils? Which white blood cells were abnormal?

3) I agree with Glenn... you need to supplement B12 and D3.

4) Are you still urinating so often at night? This is a big clue to hidden impaired glucose utilization. It can often happen when you start to lose weight suddenly, too, as water is shed with the fat lost. But there are serious things that cause frequent night-time urination. So I hope that is over.

5) Were you tested for all the hepatitis variants?

6) Some Gluten intolerance is not genetic, it is acquired. It may be due to frequent use of OTC or RX NSAIDs.

7) Did you use any antibiotics in the past or recent past? Fluoroquinolones? Like Cipro, Levaquin or Avelox

8) do you get any vaccines at all?

9) You might want to consult an Environmental doctor to investigate that elevated arsenic level.

10) You can be high in B6 if you eat fortified foods. Cereals and energy bars, and some other carbs, often have B6 added.
The general testing for blood B6, does not show pyridoxine and active pyridoxal separated. Pyridoxine is not active in the body.
Pyridoxal is derived from pyridoxal kinase enzyme in the liver converting the pyridoxine.

11) low folate is concerning considering that it is also commonly fortified in foods today. You may want to try taking the active methylated form called MetaFolin, in case you are a non-methylator, which is genetic. Did you have testing for MTHFR mutation? It is a DNA test. If you don't methylate properly you will be low in B12 also. So when you take the B12 supplement choose the active methylated form-- methylcobalamin.

16 doctors is a huge number IMO. One thing to keep in mind when you consult so many doctors is that typically they will NOT tell you if you have an iatrogenic issue. Meaning... doctor caused. They have a "code" which protects each other. Many complex problems that follow an initial medical visit and testing, may be iatrogenic in nature. If this is the cause of your further problems, getting help for it will not be an easy task.