Docs, is there any natural alternative to lithium for bi-polar?

Unfortunately, no. It is important to stay on medication and have it adjusted as needed with your psychiatrist. If there were a natural alternative, someone would be a billionaire, but it simply is not available. Your psychiatrist can help you try new medictions which have been approved by the FDA, natural alternatives are far too risky for anyone with bipolar.
Lithium is natural. Lithium is as natural as you can is element #3 on the periodic table. .