I guess with so much rain it was inevitable. He is very lethargic. Lies still most of the time. Stands up but won't walk. Seems to almost want to urinate but can't??? Not sure. He spreads his hind legs a little and takes a step back, then another, then nothing. Stool looks normal though in much reduced quantity. Not eating much. He's 10 months old and just started to service the girls recently. He's vaccinated. This started yesterday. Any ideas?