anyone know why water coming from shower is white?

Joining in with everyone else. There were a few places I've lived that the hot water always looked milky, but once it cooled/settled out would become normal again. There's (usually) just too much air mixed into it. If it stays cloudy, you might have too much calcium or other mineral in your water (more if you're rural and using a well.)
- Yes its rural and using a well
  
  Time to look into water softeners.

The solubility of air in water depends on temperature. When water that is saturated with air is heated, the air will bubble out of the water as the solution becomes supersaturated. We've all seen this watching a pot of water heating on the stove. Long before it boils, bubbles of air start forming on the bottom and sides of the pot.
In your shower, hot and cold water start out saturated, but when they mix, the warm water can be supersaturated, causing tiny bubbles that make the water look milky.

I have no idea what you're talking about at all. Water from my shower, or any shower I remember doesn't and hasn't ever looked white. This must be...a regional or water quality problem. Limestone in the water? Well water? I feel like you're about to learn this isn't a typical experience for many people.
- Estás seguro? That's not sound right
- If you have it on at high power it looks white when it's coming out yk
  
  Again, no idea what you mean. High power? My shower just kinda dribbles, I don't have any options to have like higher pressure.