I've been experiencing this cramp on the right side of my chest whenever I yawn. Its really painful for a bit, almost unbearable, but then it fades away. I'm trying to figure out what might be causing it and how I can prevent it. Also, is there anything I can do to lessen the pain quickly when it hits?

It sounds like you may be experiencing muscle spasms or tension in the chest area, possibly due to deep or frequent yawning. To ease the pain quickly, try gently stretching or massaging the area. If it continues or worsens, it's best to consult a healthcare provider to rule out any underlying issues.