Hello,
My husband has NETS “insulinoma” also very rare. Pancreas metastasized to liver. He is currently on round 2 of CAPTEM and no real stomach upset. He takes Odanestron on the TEM days and also takes Senna-Tine as we have found that the Odanestron causes severe constipation . One other thing, and i dont know if this is part of the reason he doesn’t have stomach upset is he takes Omeprazole daily and has from before he was diagnosed. Perhaps ask your doc about this.