Your symptoms neither fit in the pregnancy
spectrum fully nor in the hypothyroidism
I would advise you to have urine pregnancy test by the home pregnancy test method.
If pregnant then go to the endocrinologist
for tuning up the treatment because in pregnancy you need to increase the dose of thyroxine
If you are not pregnant then also go to the endocrinologist, because these symptoms are indicative of hypothyroidism on suboptimal control.
I hope the advise would help you sort out the matter in faster way.