If you email email@example.com who has a list of recommended doctors (private) who may help.
You don't say whether you have already been diagnosed as hypothyroid.
Many of our members do their own thing, i.e. buy thyroid hormones which suit and follow advice of members.
I'd get a new blood test which is TSH, T4, T3, Free T4, Free T3 and thyroid antibodies. Ask GP for B12, Vit D, iron, ferritin and folate.
Blood tests have always to be at the very earliest, fasting and if you take thyroid hormones you allow a gap of 24hours between last dose and test and take afterwards, otherwise your results will be skewed. If having your own thyroid hormes tested, always make sure your body is well hydrated a couple of days before blood is drawn.
Always get a print-out of the results with the ranges and you can post for comments.