if you recently had a child then you could be suffering from post partum depression and anxiety associated with feeling out-of-control, since these feeling don't feel appropriate or normal to a mother.  If your child is a bit older, than maybe you have issues like debt or trying financial times, no support system to turn to, difficulty organizing your time to get everything done, and it all just seems to much.  either way, it sounds like you need to speak to your Ob/Gyn just to make sure that there are no physical reasons (thyroid, for example) and possibly ask for a referral to a psychologist who can help you cope.  Don't wait - get help.