My man got checked for std and he didn't have any and i gave him oral sex and my throat hurts could it be that i put it too far down my throat?

Probably bruised: Oral and throat tissues are mildy flexible--built to pass a chewed bolus of food--not to receive traumatic thrusts from inflexible sources such as an erect penis. That can cause dangerous harm. A "deep throat" scene in a porn movie is there for shock effect and titillation--the highly sensitive tip of the penis receives no stimulation in dt. Use care & creativity instead of risk--you'll be safer.