Okay so here's the deal. I've noticed that my headlights and interior lights will dim when I turn my wheel and when I press my window switches. My windows go up excrutiatingly slow and when I'm idling, my heat seems to slow down. I had my alt checked and it read a 14.5 volts. I'm confuse as to what it could be. Any ideas?

Thanks.

Edit: I've also noticed when coasting at times, my RPMs will drop slightly real quick and then shoot right back up. It's random.