My two year old has a small knot right above his adams apple... we just noticed it and it does not seem to hurt him...should be see pedi?

A good idea . Probably a good idea to see ur pediatrician. Could be a thyroglossal duct cyst, which need to be removed. Other possibilities include dermoid cyst, branchial cleft cyst, and lipoma among others.
Neck masses. in children should always be evaluated by a pediatrician. Midline masses may represent congenital malformations, often treated with surgical removal. Best wishes.