I came home today and my Powder Brown has a mark on the top of its head that looks like it may have bumped in to my Long Spined Urchin. He is swimming and eating but I may be seeing early signs of ich from the stress. My question is not about ick (can anyone say beat a dead equine with a stick) but has anyone else had this happen. This bump/pock mark was not present this morning and was full on when I got home so I think it was more trama than a developing problem and the Urchin is the only thing I can come up with. Thanks in advance for any info.