Neck-Trap pains

Yesterday after wrestling practice, I noticed this intense pain in the back of the neck, and I think it's comming from the trap. I am sick today so I don't have to worry about it.

But my question comes in the fact that my schools trainer is very cautious, and I only go to him as a last resort. If I stretch it well, and it still hurts like it does now, should I go to him, or is there serious problems with practicing through it?