To answer your question...as I said, it was a small team relevant to the type of work we did , banding experience etc I picked up an almost entire extra caseload of patients. Don't know if you're aware that means, particularly in the nhs, that an already pressured nurse was doing double duty.
It was my choice to not have children, but I didnt not have children to always be able to accommodate those that did. Surely those that had children were aware they would have to make sacrifices themselves.
I did not say I never helped out at any other time, i did, but there is a limit of what is expected and in some cases demanded . Being expected to carry 2 caseloads over simultaneous maternity leaves ( nearly 3 years) i was exhausted. As a side note i had an elderly mother and aunt. But hey I didnt have children so what else have I to ddo with my life... isn't that the mentality !!
I have as much right to take time off at chosen times as the next person, if YOU have children its up to YOU to weigh up how that will work for YOU not EXPECT the childless others to cover for your choices.
I actually accommodated many colleagues over the years. The coming in late for school drop off, leaving early because something was up, the child is sick, the appointments etc all covered by myself and other colleagues. It was when I realised it was neither appreciated nor reciprocated, that my patience ran thin.
You talk about my 'bitterness' , when we had another mum join the team the feathers really began to fly about who was entitled to what, now that was when the 'bitterness' and demanding behaviour really came in to play, it actually refocused my colleague who started to see how easy she had had it with me!
If you don't think mothers are supported in the workplace that is not my childless fault...that is a management or policy problem and not something that I or any other childless person needs to fix. As far as i can see in healthcare there are many child friendly policies, amended working times, flexible hours, good maternity leave and managers falling over themselves to accommodate them for fear of being accused of breaking these policies. One colleague even got out of a fraudulent situation because he was stressed due to having 4 children under 5. I would have been out of a job.