I hope all goes well with you at your physical and that you and your doctor together can find that elusive key that's going to get you moving down the road you want to travel.
"Slow going" is still going, and that's the most difficult part of the battle. I think of it as working my way down from a precipitous and dangerous height. With every week that I've stayed on my plan, I've taken another step down toward safer, sturdier, sustainable ground. Sometimes it's been a small step of a few ounces; other times it's been a nice little hop down. It's all part of getting where I need to go, though.
I have a hypoactive thyroid that is marginally controlled with medication (my levels are very much toward the low end of normal). It slows things down in the weight-loss department, but no matter what your doctor finds, you WILL be able to work with it. Just knowing what "it" is will go miles toward helping you regain your health.
Please keep us posted after your doctor's visit. I think I speak for all of us when I say we are pulling for nothing but good and useful news for you and that we want to know how you're doing.