Ladybug, I think the hernia started during the resection surgery. I noticed a small bump but with all the puffiness and swelling, I ignored it. I wasn't supposed to lift more than 20 lbs for about 6 weeks, and for once, I followed directions. At my 6 week checkup, the surgeon said I can return to my regular life and do whatever I wanted. I had no restrictions on exercise or lifting. I tried Pilates but it hurt my neck so I took yoga classes instead. The yoga instructor helped me choose ab exercises/poses that I could comfortably and safely do.
about 9 weeks after my surgery, I was hired for some summer work emptying classrooms. This involved a lot of heavy lifting and that's when the hernia went from a barely noticeable bump to something the size of a softball. Due to hospital incompetence, I had complications for about 6 months after the hernia repair.
I became very cautious, I didn't want another hernia, I swore I'd never have hernia surgery again. Despite my best efforts, I noticed another hernia last August.
I'd wait until the 6 or 8 week checkup, that's when you'll probably be allowed to resume your normal activities. Take it slow and easy. You only get one chance to heal properly.