Neck pain during sex..???

Brandi • ☀Beach👣Seduction👙Love💕
So everytime my man and i have sex lately he stops halfway through because his 'neck hurts' wth is that about? I want to believe him but it's just kind of strange that that's the only time it hurts. Especially considering he does yard work all the time and electrical work and his neck never bothers him then. Any advice ladies???