Hello Harleydoll. I'm not an expert on hernias but I have been informed by a few professionals over the years that we can get post operation hernias by doing something as simple as raising an arm or a leg, by lifting something as light as a pound of sugar or getting into a position that stretches the susceptable muscles (in other words any position at all!)
I think the most graphic illustration I have heard, was a friend of mine who went to weight watchers; They worked out how much he should lose in weight and got him to literally carry that amount in bags of sugar for a day. He told me it was absolutely exhausting and was glad to finally get rid of it. After that, he vowed to get rid of the excess body weight he was carrying each and every day. After a while he managed it and said he felt so much better for it.
With hernias, they talk about not lifting stuff but if the weight is already there in your body, it's difficult to see how you are going to avoid lifting it. The point being, that it doesn't matter in what form the weight comes, if you're lifting it, then a hernia is likely to be the result or, if you already have one , then it may become more aggravated than it would be if you were not carrying the weight.
This is just an opinion based on common-sense logic, rather than medical fact. Nonetheless, I hope it is helpful in your own deliberations.
best wishes
Bill