When you say dragons do you mean 2 dragons?
If so I hope you have them housed separately, if not you need to do so ASAP!!!!
Dragons are not social with each other at all, quite the opposite is true. They are very territorial and, will fight for that territory to the death if it goes that far.
This could be the problem since the stress levels will be extremely high in both of them. Stress can cause all types of health problems. They cannot relax at all.