I am amazed at how many people think that the pain originating from the anterior delt is not related anyplace else other than where your finger is touching when you tell someone that your shoulder hurts.
This is a running topic for discussion on this board with many people starting out from either inactivity, or improper lifting. They start out trying things out on their own without having someone look at their position while performing an action so that they get immediate feed back.
I do hope many more people take the time to go and read up and get informed. Maybe learn a thing or two.
There are many more articles online much like this one over at the Biomechanics online magazine. www.biomech.com
Happy reading, learning, sharing.