Sara Jane the same thing happened to me,i went to my normal gp and as i have a thyroid problem too they did the routine tests,well when i wanted to go back he was off and i had this stupid hippy woman doctor who called me in and said it was urgent and i needed to see her now,when i went in she failed to read that i had a 7 year history and have had my thyroid removed and of course pregnancy upsets the balance of your TH levels,it will be a common thing through your whole pregnancy that will need constant monitoring,dont worry too much im sure its nothing too serious and go enjoy your birthday!! stay positive!!
Bon