Can you post pictures of him along with your tank setup?
What type/brand of UVB light are you using?
If you need night time heating, you could use a ceramic heat emitter, or a heating pad set
on LOW with a towel in between him & the pad.
Do you feed any other insects besides wax worms, like crickets, or roaches, or silkworms?
He is losing weight which most times is indicative of some type of illness, or worms/parasites
in most cases. Is his beard black right now?
Let us know how he is doing.
He has only been acting like this for a few days.
I have him on reptiles bark at the moment just cause I am about to get him a new cage that's bigger so that's temporary but there's the Sandy carpet in the new cage. Yes there is a hardish lump in the center of his belly near the bottom.
<<< please remove the bark right away, that stuff kills beardies who ingest pieces of it.
quite OK to have him on kitchen grade paper toweling for his substrate.
I leave his vegetable bowl in his cage all day, its includes broccoli, lettuce, carrots, mustard greens, kale, and a squash and green bell peppers. I put crickets jn his cage every other day for him to eat (only 2 or 3) and also I feed him some meal worms on days I'm not feeding him crickets.
No I don't have a record of his weight, but he was healthy weight when I got him and up until now he's stayed that weight.
<<< he is malnourished , dragons require some live high quality insect protein everyday , see viewtopic.php?f=18&t=237167
He has about even lightin schedule with 12 hours of darkness and 12 hours of light.
They are mounted inside his cage about 2 or 3 feet from the basking spot,
If this is the distance to the UV tube , even if in a reflector hood and unobstructed, your dragon is receiving virtually zero UVA and UVB viewtopic.php?f=34&t=234800
and this is likely resulting in much of the problems you are seeing , lack of appetite, lethargy , see this for setting up the correct distance to the basking spot viewtopic.php?f=34&t=235611\
==> aim for 180-200 microW UVB / sq.cm at the basking spot & 100 microW UVB/ sq.cm elsewhere.
It's also very cold where I live now (almost freezing now)
The only problem is I have no money for a vet even though I hate seeing him like this cause I know he's sick but I don't know why. I'm hoping I can figure out why very quickly and take care of it myself.
If you are working, there are ways to fund the vet available , and it's important that you budget properly taking into account the likelihood of needing to see a vet sometimes , it's part of being a good beardie keeper.