I can relate also. All the symptoms I have are basically what I was going through when I was diagnosed with hypothyroidism eight years ago...low energy, hair loss, shortness of breath on exertion, brain fog, etc...etc. the only thing I didn't have with that but have after having covid and two vaccines are inflammation in joints, loss of smell and taste, trouble with my eyes and heat intolerance. Of course I received treatment for the hypothyroidism and get tested on thyroid levels every six months. It shouldn't be a problem except for possible inflammation of the thyroid gland from the general inflammation experienced from the virus and/or vaccines. My primary care physician really hasn't acknowledged long covid and the long covid clinic I went to hasn't done too much. There was only one follow up visit through a phone call a month after my first visit in August 2022. I did get a recommendation for physical therapy which did help build up strength I lost. It is a little hard to get people to believe all these problems are from having covid and/or the vaccines. One friend of mine told me it was "old age". I don't think so. Just because you turn 65, it doesn't mean you fall apart. I had been very strong and active taking care of 33 acres by myself with no problems before covid. Oh well, we know what it is and will just have to hang in there.