Every single thing you mentioned, my husband had those same symptoms. But.......you can get a false reading for quite a while on your thyroid tests. He did. His thyroid problem turned into Graves Disease. Don't stop and be relentless in your search for answers. Go to an endocrinologist and have extensive testing. Get this taken care of for it will make you crazy and destroy your life and health.
After having this disease for almost two years, they are taking out his thyroid next week. This disease affected his eyes so bad and he has double vision and swollen eyes. Don't let yours go this far. He had this disease for well over a year before it was properly diagnosed. He was diagnosed two years ago with A-Fib and irregular heartbeat. Doctors now say it was his thyroid all along. He has been on Coumadin ever since. Docs say once thyroid gone and things back to normal he should get off Coumadin.
Over active Thyroid was his problem all along. The thyroid is a strange little gland that can whack out your entire body severly. Very complexed illness!
Good luck!
You should have your thyroid tested -- simple blood work for TSH, free T4 and free T3 to start -- if these are normal, then talk to your doctor about what else may cause these symptoms.
If you have trouble breathing, you should go to the emergency room or call 911.
If you're not feeling well, by all means call your doctor and make an appointment. You know best when you're not feeling yourself. My initial problem was low thyroid and a friend suggested to me that I go see the doctor. I am so glad I did. Best wishes!