For two days now, it's pulling, shooting and aching in the lower right…

For two days now, it's pulling, shooting and aching in the lower right abdomen, also on the side of the back near the ribs... When I lie down, it seems okay, when I stand up or turn around again, the pain comes back. After walking, everything stops hurting... In general, nothing else bothers me. I don't know what it is. I can only see a doctor on the 19th, I couldn't get an appointment earlier.