About the thyroid: Hope you requested or had a good enough dr to order FREE T3 and FREE T4 tests otherwise he wasted your time and money. Most dr's who do not understand thyroid only order a TSH test, which is useless. TSH is NOT a good test for diagnosing thyroid issues. Also the word FREE is important not just the T3 or T3 but FREE.

Good results are usually a Free T3 in the upper to high range and the T4 mid range.

Your voice issues sound hormonal, adrenal or thyroid or all. Most people who have thyroid issues usually have adrenal fatigue to some degree.

Oh side note: I had a neuroma on my foot 15 years ago and had it surgically removed, it was between my third and fourth toes down on the pad of my foot. Got a permanent numb spot after surgery too.

Also, were you taking any vitamins with B12 in it before the test? If so, it will make numbers higher than they really are.