a good start to describe what PPA is like...

this is borrowed from Postpartum Progress

....."You may have postpartum anxiety or OCD if you have had a baby within the last 12 months and are experiencing some of these symptoms:

• Your thoughts are racing. You can't quiet your mind. You can't settle down. You can't relax.
• You feel like you have to be doing something at all times. Cleaning bottles. Cleaning baby clothes. Cleaning the house. Doing work. Entertaining the baby. Checking on the baby.
• You are worried. Really worried. All. The. Time. Am I doing this right? Will my husband come home from his trip? Will the baby wake up? Is the baby eating enough? Is there something wrong with the baby that I'm missing? No matter what anyone says to reassure you it doesn't help.
• You may be having disturbing thoughts. Thoughts that you've never had before. Thoughts that make you wonder whether you aren't the person you thought you were. They fly into your head unwanted and you know they aren't right, that this isn't the real you, but they terrify you and they won't go away. These thoughts may start with the words "What if ..."
• You are afraid to be alone with your baby because of the thoughts. You are also afraid of things in your house that could potentially cause harm, like kitchen knives or stairs, and you avoid them like the plague.
• You have to check things constantly. Did I lock the door? Did I lock the car? Did I turn off the oven? Is the baby breathing?
• You may be having physical symptoms like stomach cramps or headaches, shakiness or nausea. You might even have panic attacks.
• You feel like a captive animal, pacing back and forth in a cage. Restless. On edge.
• You can't eat. You have no appetite.
• You can't sleep. You are so, so tired, but you can't sleep.
• You feel a sense of dread all the time, like something terrible is going to happen.
• You know something is wrong. You may not know you have a perinatal mood or anxiety disorder, but you know the way you are feeling is NOT right. You think you've "gone crazy".
• You are afraid that this is your new reality and that you've lost the "old you" forever.
• You are afraid that if you reach out for help people will judge you. Or that your baby will be taken away.

Now that you've gone through these lists are you thinking "How the heck does this lady know me? Is there a hidden camera in here?" Nope. What this should tell you is that you are NOT alone and you are NOT a freak and you are NOThighly unusual. If you are having these feelings and symptoms then it is possible you are experiencing a common disorder that 15 to 20% of new mothers have, and it is completely treatable........"

I don't have ALL of these symptoms but I have most of them... I feel like a freak.