Quoting FaithLovesBaby:" I might be able to talk my mom into taking the baby out for a while this weekend. I always feel so guilty when someone watches her, because they already think I'm just too lazy to take care of her"
Don't feel guilty and don't listen to them. I ignored my feelings after my first son and would up institutionalized for a week. Try a break first, then if that doesn't seem to ease your feelings give therapy a try. Even take medicine if you need it. PPD is temporary, so you'll only have to be on medication for a certain amount of time, but it can get out of control if you don't treat it.