Share your experience!
Some times my mobile is getting restarted while
im using Sony MDR ex110ap headphone.
Kindly do the needful for me.
pls dont suggest me to do SUS or PCC services. i did many times... 
Clear your cache. Try applications like Clean Master.
Do you experience the same behavior if you use another headset with your phone?
You can start your phone in safe mode to see if the problem may be related to any 3rd party application installed in your phone.
http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008