Estrogen plays a major protective role
Until rigorous, randomized, placebo-controlled trials are conducted and published, the responsible position is to rely on proven, evidence-based approaches to recovery and healing, and to leave unapproved peptides where they belong for now: in the laboratory, not in your body.
Patience during plateaus prevents counterproductive behaviors like excessive restriction or abandoning the protocol
If anything other than sterile saline was added, it may have been a preservative that you had reacted to
Lactating women have higher daily needs for B vitamins (for instance, riboflavin 1.6 mg/day, niacin ~17 mg NE/day), because some of the maternal intake is secreted in milk to nourish the infant