so sorry that you are dealing with this too.
i also have internal tremors. and yes, stay away from sugar. i took LDN for a while, it did not help with tremors but did give me energy. i stopped taking it when i tried other things. drugs for external tremors did not work for me. there are 2 things that help me. one is an anti-histamine regimen of Allegra and Pepcid. the other is an SSRI or an SNRI. i now take Allegra after breakfast and prescription 40 mg Pepcid afternoon or p.m. it took about 4 weeks to kick in. maybe this will help you too.