A day or so ago I started having some pain in my Navel, minor pain mostly similar to that of a burn. It flares up if I move sharply from a laying down position. Now however I have noticed mostly brownish red bloody discharge that smells off and also the area is slightly reddish with a somewhat very mild dull burning pain. Earlier this week I put serious strain on my body and I did take vaccines earlier as well if that's relavent. How concerned should I be with this and what is it most likely?