iOS 8.4 headphone volume issue, can I get some help?

When listening to music on my headphones, I noticed that the songs sound unusually quiet. I played around with the controls and figured out that if I move the timing back or forward a few seconds and then let it play again, it's much louder and a more normal volume level. The headphones are apple, I checked the volume control in settings and it's off like usual. This isn't a huge issue....just annoying. Any ideas?

Someone else that had this issue said a forced restart fixed the problem for him. Give that a shot and see if it works for you. If you don't know it's hold down power/sleep + home button for about 10 seconds until apple icon appears.