On trusting the inner mind try to keep it simple. When you responded to a gut feeling, a small voice in the head, a flash of an image or just knowing to do something. Notice the results. If you has a hit no matter how small beam about it. Enjoy it. That way your inner mind can hit you again with a postive insight. If at first seems to be a miss try it again.
You just got to pay attention to your bodies signals. Be careful of second guessing or using lodgic.
You can also check out some books on devloping intuition some have been mentioned a few times on the forum. 
Alex