Losing insane amounts of hair since 4 months post-op hair transplant, will it grow back?

I got a HT 6 months back I have been on Finasteride before surgery and continue to take 1 mg tb every alternate day along with vitamin supplements. There wasnt much shedding of my grafts post surgery but suddenly from 4th month onwards there is a lot of hair fall I am seeing. My hairs are much thinner by now and there is no density at 6 month mark. Is this shedding shock loss or telogen effluvium or finasteride shedding or what is this ? I m worried. Will the hairs grow back or its gone?