Namespaces, referencing those namespaces, and everything in between.

I am currently using the Unity standard assets character controller, but I wanted to add in fall damage. I added my health script to the namespace UnityStandardAssets.Characters.FirstPerson, and everything worked fine. Then my game kept on building up from that, and eventually I had scripts completely unrelated to the character, in the same namespace mentioned above. This was an issue, so I decided, "Huh, Unity supports namespaces, let's do this!" and I made a couple (2) namespaces, player and enemy respectively. So then, I added my health script to this namespace. Bang, 20 different errors. So, I go into the FirstPersonController script, and add this to the very top:

 using player;

And that eliminates 19 of the errors. Actually, all 20. But it gives me a new one. "The type or namespace health could not be found, are you missing a using directive or an assembly reference?"

The code that the problem comes from is this:

             p_health = GetComponent<health>();

Of course, I have added all the variables needed for this. This issue does not occur in my enemy script, where I can reference player without a problem. Would it be an issue with the order of my references? I have tried mimicking the order of the enemy scripts, and nothing changes.

Any help is much appreciated, as it has put my team's development completely on hold.