I am sorry it has taken me so long, but the site has has some issues where I could not post my answer. The sand that Spike is on is very dangerous as is all loose substrates:
This will give you an idea about Sand as a substrate: http://www.beardeddragon.org/articles/impaction/?page=3
I suggest using a solid substrate like tile, cage carpet, slate or paper. Sand can also cause skin problems and corneal ulcers in the eyes. The basking area should have 105*F in the basking area, 90's on warm side and the cool side of the tank in the 85* range. This is important for digestion and passing of stool. If the temps are not correct, this can also cause a problem where the Dragon will shut down and become weak.
You need to have 2 lights, a day time basking bulb as well as a UVB. I recommend a reptisun 10.0 and UVB lights do not put out heat. The UVB bulb is needed to stop Metabolic Bone Disease. The UVB needs to be changed every 6 months.
The UVB should be a tube type. Coil UVB bulbs can injure the eyes.Compact UVB problems: http://www.uvguide.co.uk/phototherapyphosphor-info.htm The red light is not needed unless the temps drop into the 60's. You should be feeding Collard greens, mustard greens, dandelion greens, escarole and curly endives. Butternut squash and various berries are great for a treat. The Veggies should be put in fresh daily, and done about an hour after lights on. They need 80% veggies daily and 20% live prey overa year of age.The live prey should include crickets, silk worms, roaches, goliath worms and phoenix worms.The meal worms are high in chitin which is the outer shells and can cause a blockage. Super worms and wax worms are like giving the Dragon candy. All veggies and prey should be dusted with calcium daily 5 days a week and vitamins 2 days a week.
We can try some first aid to help. Please give Spike a soak in a 50/50 warm water and Pedialyte soak. While soaking massage the abdomen from snout to vent. This should help. Make sure you are using a good powdered calcium supplement. He he does not repsond to the hydration and increase in temps, them there may be something going on, that will need to be addressed by a Herp Vet. They can run blood work and a Fecal. As long as Spike is eating, we are still doing well. To get him to eat his veggies, use some fruit baby food like a salad dressing to entice him to eat
If you supply a State, I can locate a Herp Vet for you. Please let me know if you have further questions. Joan