Birth Plan

What would you guys do ? I wanted to try having a VBac this time, I have had two c-sections, 1 emergency and second planned. But I also have bipolar and suffered , postnatal depression both times around. I was told having natural may help with mental health but the issue I’m having is I have just had my appendix removed about 3 weeks ago (at 17 weeks) and now I’m having a problem with my gallbladder which may need removing before the baby is due in August , if not removed before it definitely will be removed after. I am normal healthy and hardly ever ill but this pregnancy I am suffering in and out of hospital and seem to having medical issues which normally I don’t , my problem haven’t been pregnancy related as such but issue with appendicitis, gallbladder stones and kidney infections. What would you do ? I’m only 21 weeks but I have two other children so need to plan and make sure what I do is best for everyone.