Hi hgray!
I also happen to have the same symptoms but mostly when I'm overworked or lacked sleep. Yours is different since it seems to linger with no identifiable cause. I still think you need to have your thyroid functions monitored since in the long run it might cause you some other problems. The other diseases that the other posters suggest are all plausible but your symptoms are too non-specific to warrant investigations for these conditions. You may also have electrolyte problems such us low calcium, sodium and/or potassium.
Make sure you get adequate sleep, eat a balanced diet and have regular visits to your physician to follow up your thyroid problem. Avoid preserved foods and those with monosodium glutamate or artificial sweeteners. Recreational activities are also helpful.
I hope you regain your energy back. If there is indeed a problem, I hope it surfaces soon for your doctors to detect and remedy. Regards and God bless.
You actually have alot of the same symptoms i have. Constant fatigue,dizziness,headaches,nausea,and palpatations. I have all of those. You may or may not have dysatuonomia or POTS. But its just a suggestion. It took me 5months to get diagnosed, and i know some people who it took years to get diagnosed. Not many drs know about dysautonomia, so maybe you could suggest it to your dr. I hope you feel better =]
I actually have Dysautonomia. Its a disorder of the Autonomic Nervous System. Some people are affected differently and there are also different forms of it. My symptoms include,chronic fatigue,dizzyness,headaches,brain fog,weakness,sometimes stomach pains,and im unable to go to school. And along with the dysautonomia i go POTS (postrual orthostatic tachycardia syndrome.) So i often have a fast heart rate, sometimes it goes up to 160 just standing still, and i usually have irregular blood pressure. Its usually really high or really low.POTS is also where the dizzyness comes in. When i stand my blood pulls to my arms and legs, because my vessels dont constrict, making me dizzy and light headed. And my heart tries to compensate for it by beating really fast. I cant remember all the forms of Dysautonomia, but i know that NCS is one of them. You can learn alot about it here www.dynakids.org =]