Hello, I have been having consisten symptoms of nausea, dizziness, feeling faint for the past 4 to 5 weeks. Today I begin feeling dizzy and my tongue began to twitch. I havent had an appetite, mainly due to feeling nauseous after I eat. I went to the urgent care 2 weeks ago and they ran test and couldnt find anything wrong with my sugar levels, kidneys or liver based on the tests....I m worried there is something wrong.