I cannot see the picture.
What are the temps, size of tank, type of substrate (ie tile? Sand?), UVB info on the coil (Is it a 10.0 or 5.0? High Output?), the new UVB info? Do you have a mesh lid for a tank? Pictures will help.
MBD takes months to show symptoms. Meaning she could have this but did not show problems until now. Coil UVB are the worst, imo, and can blind your beardie as well as not providing enough UVB for most of the area where your lizard is in the tank. However, other problems depends on far is your lizard basking spot to the UVB light. Mesh lids filters out 70% of the rays. So if you was using a regular Reptisun 5.0, and your lizard basks about 12-15 inch from the lid, your lizard is not getting enough rays.
Another common mistake is to not place the UVB close to the heat source. They need to be on together and placed close together as your lizard needs the heat for the rays to get processed in its body. I had seen owners move the UVB fixture on the opposite side of the tank which is not the correct way to set it up.
Bad lighting, not hot enough, impaction, egg bound, etc... The list goes on as to why your beardie won't eat. One thing for sure: even though it did not eat insects for 5 weeks, it will eat (With a lot of gusto) if everything else was fine.
Besides the lighting, does she have a nesting box? Usually you can add it in when you see her scratching the floor. However, with you being gone for 5 weeks, she may had shown signs of laying but did not do so.
Pick up a timer for your lights. Your beardie needs 10-12 hours of day and night. Avoid relying on memory and pet sitters to do it right.
Please make an appointment asap with a vet who knows bearded dragons. In the meantime, I can try my best to help you but the vet is the only one who can confirm with bloodwork and physical exam of what is wrong with her.
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