Sending solidarity, this part is genuinely hard. Ugh I felt exactly the same way at that stage. Been there, it does get easier I promise. (Not medical advice, just my own experience.)

Just wanted to say, Supply's been tight in my area too. You've got this.

Smaller portions on shot day kept the GI stuff manageable. Ginger tea and tiny meals saved me through the early weeks. This community is the best.