It happens with analog and digital hearing aids.
Digital is good for hard listening such as school, work, crowded environments, etc. However, analog is good for hearing "everything".
My digital hearing aid has a mode where it functions as a analog hearing aid. What makes the digital hearing aid different is that it has anti-feedback. So, unusual sounds are reduced or ignored. This becomes a problem when I'm listening to music or video games. That's where the 3rd mode comes in... the anti-feedback has been disabled. So, I hear everything.
Try asking your audiologist about this. My audiologist called this mode the "MTV mode" because it allows you to hear music and television without anti-feedback. 
