This is a 6 day old Barred Plymouth Rock chick. Noticed a bulge on right side of breast today that has gotten bigger. The down rubbed off where I applied ointment because I thought there was a tiny cut, but I believe I was seeing a vein through the down. Feeding starter food and water, temp at 93 F. Chick is pretty active, pooping and drinking. Same size as other Barred Rock chick. The bulge is solid, not hard, but firm. Could this be an impacted crop? If so, what can I do for this chick? is there anything else this could be? Anyone seen this before?