Suggest Cure For Dizziness, Tinnitus And Pressure In The Head

I have been having pressure in my head, headaches (sudden onset and dull throbbing), slight dizziness, ringing in my ears, sudden onset diarrhea (has happened a couple times) and feel extremely cold when this happens. This has occurred over the last few days. I have had a complete thyroidectomy with Hashimoto s and was diagnosed with papillary carcinoma in 1994 with subsequent I-131 radiation 3 times, the last time in 2002. I have been diagnosed with generalized anxiety disorder and have have suffered from panic attacks, taking Xanex to help which I have not taken in over 1 year now. I take Levothyroxine, Metropolol (1/2 dose of 25mg) and several supplements as well as watch my diet (sugar intake, no gluten) to help control the anxiety and sore joints. My anxiety has been manageable w/out medication, but lately I have not been feeling well. The headaches are increasing with pressure and the fullness and ringing in my ears is getting worse. I m not understanding why. I don t typically have issues with headaches. This comes on suddenly and then seems to dissipate which kind of mimics a panic attack, I never got headaches with them before.