TheRatQueen
Senior Member
My little Mortimer is about 9 mos old. He's had a chest cold before and just recently had one in which they gave him tetracycline. Now it is about 2-3 weeks later after the last cold and I noticed he is still breathing a bit heavy, as if he was running around. Now, he doesn't seem distressed in any way and is not making any noises or sneezing. Should I be concerned? Thanks.