Just noticed a small lump on the side of one of my dogs. On his side and near the last rib. He is not behaving strangely, not in pain, eating well and playful. Not sure if it’s the microchip but it does move a little. He was already chipped as a puppy when I bought him so not sure where exactly the chip was implanted. He’s 17 months old. We have another dog and these two do play rough! So wondering should I get that seen to, or wait a little and see if it goes away.