Re: endocrinologist ot internal med.
Don't assume that an endo knows everything about thyroid. They generally specialize in diabetes and haven't bothered to learn anything new about thyroid since endocrinology 101. There have been many, many horror stories about dumb endos on this board since I've joined.
An internist may - or may not - be better suited to your situation than you realize. See what he/she says. If you aren't offered treatment, though, get as many opinions as it takes for that to happen. You are hypothyroid.