Yellow tang sick, or hungry?

[etork]

I am concerned about my Yellow Tang. I have had him almost a month now, and over the past few days he has these.... lumps around his belly. Acting normal (well what seems to be normal, super shy and skittish fish), pooping normal. Doesn't seem big on nori but we just found he likes the seaweed pellets so trying to give those frequently. Other fish seem happy/healthy. (Getting a picture of this fish is difficult, if a better one is needed please let me know!)

 

[G Santana]

He looks fine, when you feed yellow tangs well it shows in their bellies. He looks well fed

 

[Cole.mormon]

Hes a fat boy