Wow, I think you should give him back, if you truly feel that having a puppy isn't for you, it would be the best thing for both of you. Yes, it is a lot of responsiblity, we always have to be prepared for things like health problems that may arise. Like everything in life we really don't know what the future will bring, good or bad, we can't dwell on the what if's..If you do think you want the puppy, be 100% sure and take things day by day and just love him, hope for the best and prepare for the worse, that's life
