Pacman not eating.. paranoid owner.

[Sandra]

Hey! I am a total beginner of amphibians and would like to ask for your more experienced help.
I finally got my first pacman frog from a reptile show. (Ceratophrys cranwelli) I named him Packie. I do not know how old Packie's and neither sex of Packie because it is probably too early to see.
But Packie is a Juvenile and I've had him for 15 days. I have him in a 60x30x30 tank. I use tropical terrain compact block as substrait that I was recomended.
I also have a large plastic plant that I intended to replace with a real plant, a hiding place for him and a water bowl. I use repti-safe to clean the water.
The temperature is about 80-84f the day and about 75 f at night. He has 12 hour day and 12 hour night. The humidity is 80 in writing and usually do not rise higher or lower.

To get to the point, he eats nothing .. I've tried crickets, worms, maggots, earthworms and pinkies. (That what the local pet store has in stock) He completely ignores the food except the pinkie that he actually chased and bit into it but never ate it. (I would try pinkies again but they are out of stock..)
I have tried not to push too much food to him because I do not want him getting stressed out and uncomfortable. But a few days ago, I had such a panic when I saw how he had dropped in weight so I googled around and found that I have to pick him up and force-feed him.
So I have force-fed him, but I'm worried that I will do more harm than good for him by doing this? Because I know they should not be handeled. But by the way I have been forcefeeding him, he has started to gain weight (5g) but I thought I would let him alone now for a few days before I try to give him food again.
I also have calcium with vitamin D3 to him when I feed him.
I wonder if it's something I'm doing wrong? If the temperature is wrong and or the humidity? Are there any tips on how I can do so that he will eat on his own? I'm so worried about him and feel like a bad owner that must force down food into him. And I also think he looks a little swollen? When I google the symptoms, I get only even more paranoid, so I send you a picture so you can check it out.
I do not think he is constipated because I have seen him poop.
And sorry for my extremely poor English and spelling (I have serious dyslexia lol..)
And when we are at it, would be nice to know the name of the color of my frog
Best regards, Sandra.

http://i63.tinypic.com/2wrqjj5.jpg
http://i66.tinypic.com/rvm3ko.jpg