Wend, I've got that bigorexia, body-morphic disorder.....what ever the heck they call it nowadays......matter of fact, many of us on here have the same darn thing. Everyone around me says that I'm big, but I look at a 180 pound guy and question whether he is bigger than I am when I'm 250. I feel like I'm shrinking everyday. I have good days where I feel big, and bad days where I feel small. What works to help me, that might help him also is measurements. Have him step on the scale everyday. Most likely his weight is not changing, it's all in his perception of himself. The scale will give him his weight, then have him take a floppy tapemeasure and take his measurements: arms, chest, forearms, quads, calfs. Then he will see that his weight is not changing and his measurements are all the same, therefore he'll see that he has not shrunk, but it's just his mind playing tricks on him. Hope this helps.