hi i would like to know what the possible cause ov my injury is......i dont know how i done it but assume its training related...wen i flex my hand it feels painfull notall the time but most ov...and if i go to pull or push summin it jus feels like it goes limp like its paralysed or summin....ur views would be helpfull....also i dont know if it happend but 1 day i was shruggin dumbells n wen i lifted them off the floor i felt a tingle in my wrist