I have a 3.5 year old neutered Am Staff male. When we we first go outside, he squats to do his long pee, and then after that he lifts his leg to mark/do a short pee on random things about 4-5 times during a normal 30 minute walk. He has never kicked up dirt after doing his business in the 2 years that I have had him. In the last couple weeks, he has started stretching his legs all the way out, digging his claws into the ground, and kicking up dirt and grass. He doesn't do it every time, and when he does it's only once during the walk after about the third or fourth pee. I know other dogs do this routinely, but it struck me as odd because he has never done it before. He has allergies and IBS-type issues, as well as recurrent ear infections, and is on a prescription hypoallergenic diet, but as far as I know he has never had any UTI or bladder issues. I am not sure if this is just a random dog thing or if he is having some discomfort and acting differently because of it. Should I be worried about this? Thanks.