16 year old hypochondriac, lack of sleep and severe chronic stress have increased appetite. last thyroid test in march. hyperthyroidism likely ?

Unlikely: This is not suggestive of an overactive thyroid.

Nope: I suspect your anxiety and sleep deprivation are your biggest problems. I would see a psychiatrist or at least psychologist to help diagnose and manage your symptoms!

Not likely: Thyroid function is usually normal, please seek counseling and psychiatric help. If thyroid test was normal in March, we need to look for other reasons