This is a hard test, indeed. I hope you can binge watch some lighthearted films or Hallmark movies while you undergo this test. Do you have someone there who can at least bring conversation? Can you call friends? I would find it very difficult to endure. I had a Holter (sp.?) monitor on for two weeks one time to monitor my heart, but could still travel and dance at a wedding. Nothing was found.
I also had a sleep-deprived EEG at 2 AM, with negative results for what was causing fade-outs close to fainting. ( I learned From a later “tip table” test that I had Veso vegal syncope. It was positive and I passed out in less than 5 minutes.)
I am not in love with needing tests and most of these have been done in the last 15 years because of ongoing mysterious symptoms.
The tests to eliminate possible causes of my neuropathy, and to test the extent of them have occurred in the last 2 years after a sudden onset of symptoms.
I’m glad you wrote and sent the pictures. Show them ( and our responses) to your doctor. We are not mice in a lab, and better, motte humane tests need to be developed. But in the meantime, we are stuck.
I hope you endured, and came through on the other side.