Taking a break from work, read your whole thing one thing,
"predeceasing to inform me that "normal levels were between .3 and 3.0... well guess what? you're a winner AT... 211...."
Just from the ranges and the level those numbers are your TSH (thyroid stimulating hormone, made by your pituitary gland). TSH can go really high like that with untreated Hashimoto's disease, doesn't hurt anything in and of itself. (A rare cause of numbers like that is test interference from 'mouse antibodies')
You haven't posted what other labs you had done, and how long you've been taking meds. What friends of mine with Hypothyroidism seem to agree with is, treatment is based on.
TSH with the goal of around 1.0
T4/T3 centered in the middle of the range.
How you feel. Because there are normal for labs, and normal for you.
Diagnosis is usually based on looking at TSH, and T4/T3 (actually thyroid hormones). And thyroid antibody tests, usually thyroid disease is an autoimmune disorder.
You might also ask you friends and relatives if they know someone with thyroid problems. It's very common, esp in women, but people with it usually don't wear it on their sleeve.
PS: People with thyroid disorders often have psychological issues when untreated. A had a friend on anti-depressants for six years before a nurse noticed her thyroid was enlarged. Also libido in women is one of those things that tends to disappear when there is stress or ill health.
We've seen quite a few TSH results higher than yours, but yours is obviously too high. As mentioned, TSH is a pituitary hormone and is not really indicative of actual thyroid hormone levels.
The T3/T4 tests should have gotten/need must be FREE T3 and FREE T4. Please post reference ranges, with any lab results, since ranges vary lab to lab and have to come from your own report.
As Gibbon mentioned, you need to get the thyroid antibody tests. Those are Thyroid Peroxidase Antibodies (TPOab) and Thyrglobulin Antibodies (TGab).
I encourage you to read some of the other posts on this forum (you can search for specific terms like "high TSH", "thyroid mood swings", or other symptoms you are having too). There is a wealth of information on situations similar to yours, so no need to panic. Also, most of the people on this board have also experienced hypothyroidism, so you are definitely not alone. As far as diets go, personally I have not seen any link between my diet and thyroid symptoms. The only thing that has helped me is supplemental thyroid medication, and now that I am properly treated, the difference is like night and day. That is how you will know you are at an optimum level of meds-- you will feel much, mush better. I, too, could not recall what "normal" felt like, but trust me, you will know what it feels like again when you get there.