Yep, evening Zoomies, could almost set the clock by them when Humphrey was little,
it really is very normal at that age. How long are his walks? Could he be getting a little overtired? They do need a lot of rest and sleep still at that age and can get quite fractious if they don't get enough, which could be the cause of, what you describe as "nastiness" Humphrey was also never over enthusiastic about going for walks either during the first few months, perhaps he's still just a bit overwhelmed by the world outside, or a little nervous? We just took it slowly and kept the walks short but tried to gentle encourage him investigate things, jump over little things etc, to build his confidence and make the walks a bit more exciting. Hope that helps?
Welcome to the forum by the way - look forward to hearing more about little George! BEst of luck!