When carrying a heavy bag, make sure to never put all of its weight on one side of the body. Instead when carrying a heavy bag, make sure to hold it close to your body because holding it out from the body and to one side can strain the rotator cuff muscles and cause unnecessary pain and discomfort.
If you feel any pain and discomfort and think it may be from traveling with heavy luggage, a few sessions of massage therapy can do the trick to get everything back into place and pain free once again.