I completely understand how you feel, I was diagnosed with overactive thyroid in June - but started loosing weight in April-May. At first it was the best thing ever, felt high on energy, thin, and wired for anything - like being on drugs!
From July things took a turn for the worse, since then its been horrendous and I feel like Im going crazy. In fact Im now off work as I cant face being around people, I cant control what I say or do, Im angry at the slightest thing, over-emotional, depressed, anxious, paranoid, sensitive, feelings of low self worth, but the worst is the racing mind, its like Im torturing myself with my own thoughts - cant shut things off and the only way to stop my mind racing is frankly with wine - or throwing myself into a book. Im reading a book a night as I hardly sleep anyway.
Im also suffering from major short term memory loss - Im like a goldfish doing crazy things like leaving the handbreak off my car - walking into a shop and forgetting why I am there - paying for my groceries and then walking off without them - as for work - everyone thinks Im an idiot lately, I pick up files and put them down seconds later on the next desk... return to my own desk and start looking for them.... I used to be smart - now I feel useless.
My boyfriend is doing his best, but he is living with a crazy person, even though Im 2 weeks into the medication (Carbizole or something like that), I feel worse than ever.
I completely see how this can break relationships, and nobody understands what its like - they dont even know what a thyroid is, and as a manager, how can I lead a team when I cant even manage myself right now? I hope your partner comes round, and reads these messages, apparently it takes time to get your life back on track - I just want to feel normal again.
I love being thin, but I'd take my big butt anyday over this.