My 18 month old Male San Francisco has lost a lot of weight in the last couple of weeks, hes been eating fine and pooping normally, as well as being active at his usual times. I cant figure out why hes lost weight, he has 1 or 2 pinkies every week usually and sometimes garter grub. He has a hide and a water bowl and i keep him on tissue paper as substrate because he doesnt seem to like other kinds of bedding. Ive noticed a soft lump appear just before his vent, he hasnt eaten this week though he was bluff striking like he did maybe want to eat. So i think im gonna take him to the vet this week. Just wondered if you guys had any ideas.