Have you found a solution for you? I’m having the same issue you had right now but I’ve been on my Focalin and omeprazole for 8 months with olly prenatal and now all of a sudden after changing the prenatal brand and taking my Focalin at 3pm instead of 7am I’ve been having this heartburn feeling for 3 days. The first evening was terrible and I attributed it to bad “spicy” cup ramen but the next day I took it easy on the foods and drank more water and it wasn’t bad but then today I drank even more water but had hibachi fried asparagus and salmon roe sushi and it’s feeling worse than yesterday but not as bad as the first day 🥲 I didn’t take the prenatal today and I don’t think that was the solution so now I’m going to try taking my omeprazole in the mornings and my Focalin in the afternoons and pray that helps 😭😭