For the past four months I've had a wide range of symptoms. Inability to sleep, confusion, memory impairment, lack of concentration, lack of appetite, heart palpitations, hoarseness, speech trouble, and spelling trouble. My veins are also very large and noticeable, which is not normal for me. The tests I've had so far are an MRI, EEG, EMG, CBC, FANA, TSH, and a Metabolic Panel. Everything was normal. If anyone has any idea of what this could be please let me know. Any ideas are welcome.