Thanks for the query.
Loss of hair from scalp
as well as body is quiet a common condition called as alopecia
overgrowth of eyelashes and loss of hair cannot be related.
Both are different things.
Overgrowth of eyelashes are seen mainly in some genetic syndromes and sometimes in HIV
Please meet a dermatologist
for exact diagnosis.
Let me know if you have any other doubt.
you can ask a direct question to me on this forum, following the below link.
Wishing you a good health.