Should my adams apple be symmetrical?

I have recently been experiencing occassional spasm like pain deep inside my neck on the right hand side which I have been putting down to bad posture whilst working on the computer.  I have also noticed my adams apple appears to be larger on the right than the left but can decide whether it is on the apple or my garotid artery running over it.  Can anyone advise.  I have been having insomnia and night sweats but this is probably due to being overweight and under a lot of work pressure.