Ay sis, normal lang yan, CS incision ay usually around 4-6 inches at medyo magiging red at swollen talaga ng unang ilang linggo, kaya don't worry doon. But ang pagkakaroon ng lump or persistent pain sa left side nyo is something you really should check with your OB na, lalo na if kumikirot pa rin, pwedeng normal lang pressure or swelling, pero better safe than sorry, especially fresh pa lang kayo from surgery!