I am sure there are people who sail through pregnancy without so much as a niggle, and/or have quick, problem-free labours, and/or have an easy time post-natally - there may be some who do all three - but I think most people have some physical, hormonal or emotional discomforts and problems during pregnancy, find labour bloody painful and/or suffer trauma or birth injuries, and/or struggle with PND, breastfeeding etc.
Morning sickness is a ‘normal’ part of pregnancy - that doesn’t make it any easier to cope with, even when it is simply morning sickness and not the horror of HG.
I really struggled with breastfeeding with all three of mine - for various reasons. With ds1, he was very jaundiced and while he was having the phototherapy, I was told to feed him three-hourly, and top him up with formula, because he needed more fluid and calories. I was scared for him so I did what the doctors said - but it ruined the establishment of breastfeeding. I did try to re-establish it when we got home, but failed.
With ds2 I was so committed to succeeding - he fed all the time, and still didn’t regain his birth weight. When he ended up in hospital with a chest infection at 6 weeks old, they saw he hadn’t regained the 10oz he’d lost from his birth weight and started to mutter about ‘failure to thrive’, and told me I had to start supplementing him, and he had to start gaining weight, before he’d be allowed home. Faced with that, of course I supplemented - and again, that killed breastfeeding.
With ds3, I mixed fed almost from the get-go, and as long as he had two formula feeds a day, he gained weight, but if I cut one or both of them out, he stopped gaining. I did manage to mixed feed for 12 weeks - the closest I came to ‘succeeding’ at breastfeeding.
I had three healthy boys, but I felt like a total failure, because I couldn’t do something completely natural, that all my other mum friends were breezing through. No-one else judged me for it, just me - but I am sure it contributed to PND each time. I did have a history of clinical depression, that was undiagnosed at that time, but I got PND on top, and the failure to breastfeed contributed to that.
All of which is a long winded way of saying that things can go awry with even the most natural of processes, and women need and deserve swift diagnosis and treatment, for the sake of them and their babies.