definately your anxity ltself seems to the cause, do you sweat more durin rest?,having difficulty in concentrating? can you maintin good energy level in day time? what abt your sleep pattren? are you feel fatigue?these are all counts to say that your anxity has recurrence&relapses &chanses that can run long way in your life unless diagnoised properly at this age,consult physican first to get done thyroid function tests
.do some breathing exersises for time being.gud luk.