Context matters here, why are you actually on mounjaro, diabetes, obesity, PCOS, something else? If diabetes is the reason, run this by your physician before straying from the normal routine, since that can let glucose drift outside a safe range. That said, spacing injections out is doable, I stretched mine once to buy extra weeks while waiting on new insurance, but less frequent dosing means less of the drug circulating in your body overall. That can ease the rough stuff, though if nothing bothered you around when you first settled into your current dose, this might just be a bug or something you ate. Big, greasy meals trip up a lot of people on this. If your diet genuinely hasn't shifted, spacing things out further is reasonable as long as your doctor's on board too.