Hello @tigertoo

I would like to join Lisa (@lisalucier) in welcoming you to Mayo Connect. The internal shakiness/tremors is often related to Parkinson's (PD). I do understand that your neurologist has ruled PD out but you might keep this diagnosis in the back of your mind if no other diagnosis materializes. I had symptoms of PD for almost 20 years and saw a number of doctors before a definitive diagnosis was made. PD is diagnosed in a rather peculiar way in that if nothing else is the obvious diagnosis the doctor will often give you some carbidopa/levodopa and see if that helps the symptoms. If it does help, then they decide you have PD. However, I'm not a medical professional and I can only share my own experiences.

Are you feeling any better with the neurontin and the Vitamin B therapy? Do you have any other symptoms that relate to balance, unsteady gait, low volume voice, constipation, etc.?