"I&#039;ve been on Kariva for 2 months and it has turned me into a completely different person. I&#039;m ALWAYS tired. I can sleep just fine but, I&#039;m constantly tired. I never feel rested. I&#039;ve noticed it&#039;s made me depressed. Everyone around me notices also. I&#039;ve had horrible headaches. My appetite has changed. I have blurred vision, dizziness. Its ridiculous. As far as spotting I haven&#039;t experienced any of that. So, effectiveness has been pretty good."