Morning Weakness, heart racing

[Guest guest]

I'm still having strange symptoms in the morning. Weak limbs, heart racing,

breathlessness. It usually subsides after a couple of hours. I had to go back

to 2 grains due to my heart pain 1 week ago but my Dr. said I raised it too much

at once (1 grain) and to wait a bit more and raise it 1/4 grain and see how I

do. My highest temp. is 98.2. But yesterday I was resting and woke up to a

racing heart and took my second grain (overdue 1/2 an hour) sublingually and my

heart calmed right down so I'm wondering if perhaps my morning symptoms are

caused by low thyroid?

Thanks!

in CA