Have I shrunk/damaged my brain permanently?

[boy of misery]

Hi..

I'm a 19 y/o male. 4 years ago, I used to abuse myself by dehydrating and starving myself, and my lowest weight was 100 lbs. I was 5'8 in height and this weight stayed for a few months.

Do you think I've done permanent damages to my body, especially to my precious brain due to malnutrition that severe?

Regards.

[boy of misery]

I've heard and read about cerebral atrophy and I think it's the scariest thing that could've done to me