It sounds to me (not medically qualified) that you are not on enough medication.
For your information, this is a link to an archived site which may give you some information. Before levothyroxine was introduced together with the blood tests for the thyroid gland, people were dosed with natural dessicated thyroid hormones until the were better.
It was about ten years later that three new diseases were named, cfs/me/fibromyalgia.
This is an excerpt from the link and there are other topics at the top of the page.
Barnes was right when, long ago, he wrote that circulating levels of hormones don't measure what's most important—how the patient's tissues are responding to a dosage of thyroid hormone. Our regimen involves multiple measures of how tissues are responding to a particular dosage, repeated at short intervals in a highly systematic way. Our model of assessment is taken from behavior modification, in which I was trained in the early 1970s. We know from hundreds of trial runs that we can precisely control the metabolic status of most patients only by using these multiple measures of tissue response. We adjust each patient's dosage until these measures tell use we've achieved normal tissue metabolic status—regardless of what the patient's circulating hormone levels are. I concede that you can do some fairly good tweaking by using free T3 and T4 levels. But still, if the patient's tissue responses aren't carefully assessed, the clinician isn't focusing on what's most important—the patient's physiological and clinical responses to treatment.