@thomason Hello, Back in 2015 /2016 I had tonsil cancer Stage 4, after going through chemo & radiation. I'm cancer free 🙂 Give Glory to our Father. I do have nerve damage from the first time I had radiation. 🙁 my hold body was affected on the 1st radiation treatment. My neurologist explain it to me this way, Your a extension cord the treatment I had went through all my protective layers of the ext. cord and damage the wiring...how I explain it to people so they can understand how i'm feeling this way .. it's like you body is sleeping all the time fleeing, your foot or arm falls asleep and you shake to wake it up, but my body don't wake up. Now after 9 + yrs or so the nerve damage is now affecting my speech, nerves in tongue and the muscle in swallowing. All my doctors are "Baffled" why this is happening now. I will being looking for a red light gadget. When you have time could you please send a picture of what you use? Have a happy day 🙂 I attach my reason results.