CONSTANT HEADACHES,LIGHT HEADED,HARD BREATHING

[kristaface]

For about 4 months I have been having constant headaches,which aren't as often as before along with always feeling lightheaded.Being in warm temperatures seems to make me feel worse also.For about a week I have random times where its hard for me to breathe and my heart races to about 120 beats per minute.I also get random chest pain.
I do have a thyroid condition graves disease i take levothyroxine and my thyroid levels are normal when i got checked.i went to the emergency room and they tested my blood for anemic thyroid levels alot of other things and they all came out normal.I have also gotten a CT scan done and it came back normal,they also did an xray of my spine and that came out normal the only thing they said was my upper disk in my spine was a little straighter then normal but they didnt seem to think that could be the issue.this is getting really frustrating and i would like some advice on where to go from here.or if anyone has any ideas on what will help.thanks

[kristaface]

i dont have my numbers
but ive always taken this medication after they radiated my thyroid when i was 14
and these symptoms just started about 4 months ago
do u have any ideas on what to try

[stella5349]

Graves disease would be an autoimmune hyperthyroid condition - so why are you on meds for hypothyroidism?

Your symptoms sound very classic of hyperT - but I am confused why you are treated with hypO meds.

What is "normal" with your labs? Do you have your numbers?