I am sorry to hear you are worried about Jenson. My name is Rebecca. I am a veterinarian and will do my best to help.
How long has he had these tremors?
How old is he?
Is he eating and drinking normally? Any recent weight loss?
Knowing a little more about him will help me answer your questions.
If you can post a video here, or online and send me the link, that would be helpful.
If these came on suddenly, these could be a form of seizure. If I could, I would start with a thorough physical exam: checking reflexes, taking his blood pressure, looking at the backs of his eyes (retinas), feeling his pulse for irregular heart beats, palpate internal organs and lymph nodes, etc. along with watching your video. I might consider checking him for hypothyroidism, which can cause weakness in the back legs and tremors.
I just answer veterinary questions for the website, and do not know anything about how things like this work. If the video is too large, it may not load here. You can post it to an online site, and send me the link. You can contact the website moderators on the drop down menu for help with loading your video.
I am sorry you decided to give me a hurtful negative rating. I would have been happy to continue the conversation and answered questions until you got the information you needed.
My best wishes for you and Jenson.
Thank you for the great rating! How is Jenson doing?