Hi I'm 41 female ,I have had graves diesese for past 3 years,diagnosed by heart palpitations at present my bloods are controlled,I'm on 5mg of neomerazole daily .over the last 4 month I've been experiencing palpitations again and my pulse is around the 97/113 mark,I get breathless climbing a stairs or just doing housework ,and sweat a lot on walking . I am under quite a bit of stress at the moment with family issues ,I've had an ECG and the t wave was slightly inverted,but 2 subsequent ECG's were fine and I've also had a holter monitor which was clear, I'm awaiting a stress test and echo, should I be worried? I'm actually more worried I'm wasteing the doctors time and that maybe I'm imagining things