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I'll respond anyway, but please don't do this here.

Unless you have an injury or disability, there's always a weight you can lift that doesn't hurt for a decent amount of reps.

You already lift your own weight all the time. You can always add more and keep going at your own pace from there. The whole point of strength training is to be comfortable lifting increasing amounts of weight over time.

For all the reasons I already listed in other comments, it's the simplest and fastest known way to not feeling like shit all the time. This is a form of exercise that can be done effectively with minimal sweating indoors. It doesn't get any simpler than this. Consider that all forms of exercise involve weight. If even this "hurts", you might have an injury you weren't aware of.