Sick Kitty

I do believe we are going to have to take our cat to the vet...Hubby and I were sitting on the bed today and our favorite kitty walks over and climbs up on hubby's lap...just a purring...and just a peeing....that's right he was just standing there whizzing all over hubby's lap....nasty....There has to be something wrong with this cat...He has been litter trained and de-nutted since he was a kitten (3 yrs)...someone told me it could be a bladder infection...I don't know, but I just can't have that....won't it be nice when company comes over and kitty walks in and lovingly rubs against them and....pisssssss....so it's off to the vet we go