this could be a subjective feeling, of sponginess. i cant take it into consideration till u do not get it analysed or examined it from someone else. this type of pain that u are mentioning is usually either due to scapulocostal syndrome or cervical spondylitis
. for this u need to get an MRI
of the C-spine. till then u can try a combination of thiocolchicoside+diclofenac
sodium twice/trice daily, ointment flurbiprofen
to be applied locally twice a day, hot fomentation to be done in the area that is painful.