I think I am experiencing anxiety attacks, my neck goes red and blotchy my heart beats fast and feel very hot. I have essential tremor and the shakes are worse when im anxious. It happens for no reason really and im generally a nervous person. I also have extreme hunger pangs which also makes my shaking worse and my stomoach rumbles very loudly (embarassing) I used to have a goitre and believe this is all to do with my thyroid my symptoms seem very similar to hyperthyroid but my blood test are normal??