Well if you can't take temperatures then it's probably temperature related as you have NO IDEA WHAT THE TEMPS ARE.
Theres possibly other problems with her care as well.
You NEED to get a temp gun or a digital temperature gauge with a probe. These are the ONLY accurate options for measuring surface temperature. Which Is what you NEED, mostly for the basking spot.
Basking spot - 100-110*F, No less and No more.
Warm side (Area around direct basking spot) - 88-95.
Cool side - 70-85.
Night time temperature - 65-85. If it drops below 65 you can get a CHE/Ceramic heat emitter, this is the only way to heat them at night with above heat. Any other bulb usually emits red/purple/black/green lighting which is VERY VISIBLE to them, they see the colors we do and more so any colored bulbs with disturb their sleep and possibly mess with their eyes.
At her age lots of greens is definitely good.
This is just a little feeding guide if you need any help with that... as I worry when you say worms.
All life stages eat 10-20 bugs a feeding.
1-4 months 3x a day.
4-12 months 2x a day.
12-20 months once a day.
20+ months twice a week at the least, every other day at the most.
Staple feeders - Crickets, locusts, grasshoppers, silkworms, black soldier fly larvae, dubia roaches, turkish roaches, possibly earthworms.
Treat feeders - Waxworms, hornworms, superworms, mealworms, butterworms.
Wax worms - once a week, 4-5 max.
Hornworms - every other day to every two days, 4-6 max.
Mealworms - every other day to every two days, 5-10 max. Only for beardies above 6 months.
Superworms - once or twice a week, 3-4 max. Only for beardies above 12 months.
Butterworms - once or twice a week, 3-4 max.
Daily greens- Turnip/collard/mustard greens, endive, and kale if added to a mixture of the other staple greens mentioned.
Fruit once or twice a week - Banana, strawberries, blueberries, blackberries, red raspberries.
For more food items -
http://www.thebeardeddragon.org/bearded-dragon-nutrition-data.php#veg
http://www.beautifuldragons.com/Nutrition.html
Make sure you have at least TWO supplements, Calcium without D3 and Multivitamins.
For beardies less than two years, 5x with calcium and 2x with multivitamins a week dusted on at least one insect feeding.
For beardies at or above two years, 3-4x with calcium and 1-2x with multivitamins a week.
I usually dust the salad for this and then on insect days I dust the insects.
Generally weekdays are my calcium days and multivitamin days are my weekends.
Make sure you have a long tube light for UVB and a bright white basking bulb.
The tube light should be a REPTISUN T5 HO 10.0 TUBE LIGHT BULB in a fitting reflective fixture right in front or behind the basking bulb so when the beardie basks it gets UVB.
It's also preferred to have a long enough light that it reaches somewhat in the middle/cool end so the beardie can also get UVB when not basking, and also get to areas with no UVB.
What is her current enclosure size?
What is her substrate/bedding?
What is her current light setup? (Tell me everything, brand, type, colored or not colored, ect)
How big is she (Head to tail)
Can you weigh her? If so tell me how much she is in grams.
How many times a week do you feed her?
How much for those feeding days?
How many times do you dust your insects?
What type of veggies/greens is she getting?
https://www.beardeddragon.org/useruploads/
It would be good to post pictures of her, her setup and everything.
Basically go there, upload a picture, then when you come back hit the XIMG tab above when you reply an select the picture.