Mommy, ang dumudugo na nipple at painful latch from 2 months onwards ay red flag talaga, I'd suggest getting her checked by a lactation consultant or pediatrician para sure, kasi hindi lang lip-tie ang pwedeng cause ng ganyan, pero definitely possible rin. A few of us went through similar situations, and parang isa sa amin may lip-tie din, pero may isa naman na shallow latch lang pala at may tongue-tie pa. In the meantime, the Mama's Choice Nipple Cream really helped me when my nipples were cracking, it's safe for breastfeeding and honestly nag-heal na faster ang aking latch wounds habang nag-figure out kami ng issue. Kaya mo yan, mommy, kaya mo!