Let- down

Am

I’m a ftm. Baby was born this past Wednesday at noon, so she’s 4-1/2 days old. Exclusively breastfeeding and generally trying to figure out what to do.

Lactation consultant helped me figure out angle and position so that I just feel tugging/pulling while breastfeeding as opposed to pinching pain. Thing is, it is still excruciating for the first few seconds that she latches on. Is this normal? Does it get easier?

Also, my milk is changing from yellow colostrum to clear white and runnier. My breasts feel heavier and they are definitely warmer. They look a bit less full after feeding. But, I haven’t felt that let-down feeling. When do you feel that?