I have been reading all the talk on the internal tremors, which I have also experienced. I haven't been vaccinated for Covid, but will not get into why, it is a very lengthy discussion on its own. I have a few things to add to this that I have discovered in my last week's research. Symptom describing can make a HUGE difference in the area the doctor looks first. For example, I thought saying that "I felt a electrical sensation running up and down my spine" was the right way to describe one on my symptoms. I found that to be inadequate when using that terminology in a Google search and a Mayo search. What I found out I needed to say was "a vibration" the two ways of saying just one symptom made a major difference in what I was given to look up. Okay I'll get to my point. I have appointment with Doctor at Post Covid clinic on March 19th, 2022. Three months waiting for this appointment. The symptoms I started noticing after CV19, some of which I still have, some have stopped, new ones have begun to become a daily routine. I have been a fighter over every obstacle I have been thrown for years, but this time it's been different. This struggle has left me damaged in a way I didn't know was possible. I got to the point of questioning my own sanity. I ended up having to start seeing a therapist after years of not needing one. The pain and lack of sleep have placed an enormous burden on my mental health and overwhelmed my body, to the point of putting me on my back in bed. If not for friends and family I would not be here today. I have several autoimmune diseases, but I have learned so much in one week regarding one of them I have become overwhelmed. I typed this into a search engine just days ago "difficulty breathing while standing" okay I have what's called "Sjogrens Syndrome" my neurologist never made it seem all that big of a deal compared to my other diseases, so I didn't give it much research. The search on breathing brought me to a point on the Sjogrens International site with a warning to those who have it to study information that most doctors don't know about to tell us. I'm trying to make this shorter, doing my best. The Vagus Nerve is mentioned during the information, which is what grabbed my attention to this site as well as Sjogrens. Only specialized doctors even know what tests to run, so if you don't start with a doctor specializing with Dysautonomia, which Vagus Nerve also is attributed to, you may just be lost before you begin. Mayo Clinic has doctors that specialize in "Dysautonomia" of which there are 15 different types. This all has to do with the Nervous System and is quite overwhelming as there Soo much that can be wrong here. I'm just trying to give information to everyone with these out of the normal symptoms as much help as I have been able to find. If you want you can connect with me here and I will also try to put updates on what I find. I am on several groups of Mayo Connect. God bless!!