Hi there, sorry to hear of your troubles. I was wondering perhaps about your thyroid, your mood swings and highs and lows can point to bipolar disorder, but bipolar has been known to be misdiagnosed at times when it is actually a malfunctioning thyroid...you could have severe vitamin deficiency, anemia, you have had two children close together, and have lots of issues, including depression.
I would get your dr to give you another full exam including all your blood work, vitamin deficiency (B12 should be at optimal level of about 600-800, you can check out the evidence of this yourself), get diabetes tested, thyroid, and more than just the TSH, get the free T3 and T4 even if you fall within the reference range...ferritin can diagnose some problems with iron deficiency or overload, anemia can be very debilatating, and there are many disorders that cause a person to be either anemic, iron deficient, or iron overloaded. You need to get to root causes as the dr rules things out.
At this point it is a process of elimination, as the dr checks things and rules things out. Have they done any testing at all? Scans? MRI's to do with your headaches?
I know it seems all very overwhelming when you feel yucky, and have no energy to hardly get yourself together to get out the door sometimes, but it needs to be done and you have a couple good reasons, including yourself that can be a good motivator. I also have two young children, and if not for them I'd be hiding out in bed.
Hang in there, PM me if you have need to talk...take care.
Like Panda2526 said you should get to a Dr. Your body chemistry could be out of whack or worse. You need to get some serious things ruled out by a health care professional. Please see one. Cut and paste your note in word and print it for the Dr. Good luck.
Are you taking meds for anxiety or depression as that will do it, some are worse than others ask the Doc about dosage if you are .