Hi everyone! I just checked my 7 month lab's weight and it's 18kg, but when I looked online it says that his weight is underweight. He has a tight abdominal tuck (which is less tight now as everyone in my family is sick so we haven't been able to take for his daily 1 hour walk for the past 4 days ). His ribcage can also be discerned from his waist and he's very energetic and happy (unless he's sleeping a lot because he's bored). There is no fat storage in his neck. Should I be worried for his smaller weight? Thank you!!