I was diagnosed with hypothyroidism (tsh=8.1). Took 50 mcg of generic levothyroxine. In 6 weeks developed neuralgia, constant panic state and agony of mind, went from 108 to 97 pounds, restlessness, irritability, yeast infection, BV, and a feeling of a lump tightening the passing of food, or swollen thyroid. The TSH went down to only 4.5. Switched to Synthroid 50 mcg, anxiety decreased to manageable, neuralgia gone, gain the weight back, less irritable... However, the BV became chronic and unbearable. Quit Synthroid about 6 weeks ago and - although the BV symptoms became quiet milder - the panic attacks are constant again! Is there anybody out there like me?