Is my baby feeding too much?

So my 12 week old is still feeding every 1-2 hours during the day and barely naps for more that 30 minutes. He’s gaining weight and growing really well. He sleeps for 7 hours straight of a night then feeds and sleeps for another 3 hours.

I mentioned to my doctor about how much he’s feeding during the day and she suggested I use formula every now and then so I can rest but even then I’ll need to pump to keep my supply up. And I’m aware of how exhausting breastfeeding can be and I want to continue to do it. And I’m aware you can’t over feed a breast fed baby but my doctor has made me question if he’s getting enough from me?

He’s a very big baby and is weighing 7.8kg currently so I just expected this feeding to be normal for a bigger baby.