my ecg came back completely normal so no heart problems thank god. i have gotten an iron and thyroid panel but i believe they were just the run of the mill type, which came back normal. i did a barium swallow which came back completely normal. i will ask my nuerologist to do another mri and that may be helpful. ive also considered a lumbar puncture but i fear that would be too extreme and they would not order one for me. thank you for the input!