@fde11 Hi there. I'm sorry you are experiencing these symptoms and am very happy you're lining up a neurology appointment. Is that the specialist you mean?

I have small-fiber polyneuropathy and have experienced many symptoms, some of what you've described. My neuropathy was caused by a B12 deficiency. I have since regulated my B12 but have lasting effects of the permanent nerve damage. Over the course of these past several years there have been symptoms that have come and gone, some that are by the day, week, or month. I have experienced irregulation of body temperature. I've experienced vibrations, like spoke of in earlier posts. I have experienced joint pain, random sharp stabbing pain. Things that made me go to an orthopedic doctor but nothing was ever wrong, like that of your knee. I also experience pins and needles, burning, muscle weakness and twitching. My feet freeze and feel frost bit, a burning cold.

To me your problems definitely sounds neurological but, I am no Dr. My advice to you is to be your best advocate and persist in getting in to a neurologist as soon as possible. There typically would be a plethora of blood work first. Then there are tests such as EMG/Nerve Conduction Study, skin pinch biopsy, lumbar puncture, genetic testing. Also, keep researching so you are knowledgable about your body.

I wish you luck going forward and hope this helps.
Rachel