I have this weird issue that I change my opinions or feelings about something constantly.
What I mean is I can't hold a constant opinion about something. I want to be the same as others but also special. I absolutely hate new age as it triggers me terribly and 2 weeks later I buy a crystal. I'm a militant vegetarian and a year later I eat sausages and steaks. One day I'm a good Catholic and a week later I read a pagan forum, then I'm an agnostic, 2 days later I'm scared of demons.. I get absolutely excited about some healthy eating fashion which lasts about a week...

This happens constantly in both small and larger areas.
I absolutely hate this about myself and sometimes people around me think I'm a liar or pretentious but I always try to be 100% honest, I just genuinely change my attitudes so fast.

Is this a character flaw and a sign of weakness or what is it?
Is there someone with similar issues? Is there a name for this?