After Botox injection 12 hours later I have tingling in hands/feet. Is this normal? Does it go away? Anything help?

Assuming you had Botox in the face for cosmetic purposes, there is no reason to relate systemic effects such as tingling in the hands and feet to the procedure. Although there have been reports of systemic symptoms, these are related to very high doses for medical therapeutic applications in non-facial areas.

This is not a typical side effect of treatment with Botox and can be due to another issue. I would recommend following up with a board certified physician and addressing your concerns. I hope this helps, and I wish you the best of luck.  

Botox injections have been reported to have some rare systemic side effects, but usually not in cosmetic dosages.  I would immediately contact your treating physician and consult a neurologist to evaluate your symptoms.  Please let me know what happens.