18 month old has never slept through the night

Hello, I am VERY VERY new to homeopathy but am also very eager to learn more about it. I have an almost 19 month old son who has never slept through the night. He usually gets up no fewer than two times per night, and most recently every two hours. He is currently cutting teeth which causes him to get up more than normal, but has always gotten up at least twice even when not teething. He is a very energetic toddler, very attached to me (his mother). He cries most times he will see me leave the room. He's very jealous. If I hold another child or my husband gives me a hug he will cry. He's very daring, jumping off of furniture and climbing. He has a temper and will throw himself down into a fit if he doesn't get his way. He can also be very sweet and cuddly. He talks a lot for his age. He has curly blond hair, olive skin, and light brown eyes. He is big for his age nearly 30 pounds and 34 1/2 inches tall. He still nurses often, but will drink whole milk. He would rather nurse than eat most of the time and will throw a fit if denied. His first two weeks of life he wouldn't sleep anywhere but on my chest. He would never sleep in his crib.

I hope I have provided enough information. Can anyone help me with suggestions?