If she’s acting normal, eating and pooping regularly I wouldn’t be too worried. When eggs get bound or stuck in shell gland (uterus for avians), that organ is located above the cloacal opening, so stuck eggs can block poop from exiting cloaca.I still feel the lump in the side of her belly, so I doubt it's an egg now. Should I be worried? She's acting normal.
The intestines are located below cloaca in rear abdominal region, it’s unlikely a lump in abdominal area would be an egg. The gizzard is supposed to be hard, it’s located roughly midway between crop and first stomach. Lump in abdominal area could possibly be hardened bit of intestines due to something she ate that’s not moving through, or inflammation from old age. But again, if she’s actively eating, pooping, being herself i wouldn’t worry. If you notice abdominal bloating or fluid retention in either crop or abdomen, that could be concerning.
Take care.