I have a haital hernia also, it might be good to walk , and if you feel good enough increase your walking distance and speed. sit up straight and eat small and more frequent meals. you could also have an endoscopy to look at how your hernia is effecting you .( The endoscopy was easy, they put you to sleep and then they were finished, waking me up.) I would think the weights you should talk to your doctor .. or at least do light weights and small repatitions. then in a week or two slowly increase your reps, and weight. It's all trial and error. if you take it slow you shouldn't hurt to much. and if you hurt stop!!!! besides a normal muscle hurt... thats natural.