My spine sticks out like crazy when i bend down u can see it. what is going on?

Either you are very: Thin or you may have a spine deformity such as a scoliosis which can look more pronounced when bending forward which is a way scoliosis screening is often conducted.

If painful see PCP: There are a variety of reasons why this can be going on. You will need evaluation by a doctor to figure out the diagnosis. It could be either some type of scoliosis, or scheuermann's kyphosis, etc. Or just a normal spine. Nothing necessarily to be alarmed about if you are not having any pain. But having your concerns examined and evaluated will be recommended.