May i have an explanation of why someone gets restless leg syndrome and what the proper symptoms are?

Nobody knows cause: But it sometimes occurs secondary to other drugs, particularly drugs used to treat severe anxiety and bipolar disorder (like abilify, (aripiprazole) seroquel) and even sometimes with antihistamines. Iron and vitamin deficiencies can sometimes cause it or make it worse. The legs hurt and ache unless the person moves them, so they are moving them a lot at night, which interferes with getting proper rem sleep.

RLS: It is a syndrome w/ symptoms of an urge to move the legs especially near bedtime, that improves w/ movement ; is worse @ rest. It typically has uneasy sensations. Besides its relation to low peripheral Dopamine levels ; some to genes, it is unclear why it occurs. Sometimes it may be secondary to other medical issues. It's recommended that you see a sleep medicine specialist to properly diagnose it.