I am overwhelmed

Ever since having baby #2 I have been totally overwhelmed.  Not just with having two children, but with life.  Everything overwhelms me.  Doing the dishes overwhelms me.  Doing laundry overwhelms me.  Going to work overwhelms me.  Thinking about quitting my job and staying home with the kids overwhelms me.  I feel trapped.  I am panicking and can't concentrate at work.  I want to cry and am holding back tears constantly.  What am I supposed to do?  I feel like I have run out of people to talk to.  So now I feel lonely and abandoned.  I feel hopeless and scared.  Every scenario I run through my head - quitting my work, continuing work, moving away, hubby switching jobs - terrifies me.  I can't continue on like this though.  Something has got to change.  I am afraid my new medication will not kick in in enough time to give my work a chance.  I am so panicky about work.  I feel so stupid, so awkward, so out of place.  I need someone to talk to.