newbie looking for help

[ronaldo97]

first of all, greetings from Indonesia.
recently i got 2 pacmans, albino and strawberry.
both is still small, probably less than 2 inch..
i fed them every 2 days with 2crickets each of them. (i also dusted the crickets with calcium which i bought from a nearby place)
i am using filter pad as substrate for the enclosure, with mineral water.. (picture coming as soon as i can)
this is what concerned me, its been two weeks since the last time my albino pooped, usually they pooped nearly together (1-2 days gap maximum)
the strawberry pacman already pooped twice, and for the albino not even once.
i also found that these past few days they have been shedding. (i dont know since when)
and one more thing that's been bothering me, they got a little swollen under their mouth. its look like its full of water, but when i tried to see what's wrong, they made the swollen disappear.
can someone tell me what's wrong with them?
is the food i gave them too little? is it too much water? (i gave 3 kinds of place in the enclosure, full water, a little wet (mushy) and dry. but they chose to stay in the wet place and sometimes in the water)

Best Regards,

ps. the pacmans picture and their enclosure as well as the swollen picture is still not available. however i will try to upload it as soon as i can.
Update : Picture



Picture 1 :
I : Water place
II : Wet (How wet it is can be seen on the 3rd picture as i pressed it with my hand)
III : Dry (No water at all)

Picture 2 : its really not clear in the picture, usually it swell bigger than that.

Picture 4 : Albino

Picture 5 : Strawberry