Three days ago I woke up in bed to some fairly severe pain just below the right side of my rib cage. The pain was similar to a combination of the sensation you'd get from sleeping on your ribs after being punched hard enough to bruise them and a pulled muscle. Movement seemed to make it worse and after three days it's subsided largely but I can still feel it when I stretch my torso. Tonight my wife complained about pain just under the left side of her rib cage and described the exact same symptoms I had and I didn't talk to her about the pain I was having. There's no discoloration, visible inflammation, bruising or otherwise any visible symptoms. We've both been in some fairly severe heat lately as the A/C in the car went out and we haven't been able to fix it yet. Other than that we've had no physical activity that could account for the sudden pain.