The electron structures of lithium and sodium are very similar, because each has a single valence electron in the s orbital. This is what makes them alkali metals. Because they have only a single valence electron, it requires relatively little energy to remove the electron to form a positive ion, and give the particle a stable outer shell. For this reason, alkali metals are highly reactive, and must be stored in oil to prevent them from reacting with water vapor in the air.
Light Symptoms of Poisoning: Increased thirst, queasiness, trembling of the hands, strong sensing in the tummy, pimples, moderate twitching of the muscle groups and epidermis allergy are among the moderate unwanted side effects of lithium treatment.
Most of these side effects of lithium usually are evident in the earliest phase of treatment solution with lithium drug treatments and usually diminish after some time. In case most of these lithium unwanted side effects continue to persist for very long, you must confer with your general practitioner.