Hi ritysayoo ,
18 Yrs old , Memory disturbance.
Is there any h/o head injury
in recent past
is there any h/o seizure
Are you taking any other medication
If all the above is No
Check for Thyroid function test
Vit B12 level
If found to be normal . Then probably you have Psedodementia due to underlying depression
or Anxiety disorder.
Anyway do not get Panic. Meet your nearest neurologist
and then a Psychiatrist
. After evaluation you may be prescribed a Antidepressent and counselling
All the best