Periods & thyroid -- Kids heath too.

I am 33yrs old & i always have irregular periods. Before my first pregancy, the doctors did various tests whether i have thyroid problem, sugar etc. But everything seemed to be normal. During my first pregnancy(2004), i had gestational diabetics & after delivery everything went on fine. Sooner in 10 months time,i had severe bleeding for 3 months, doctors gave me estradiol & provera & still the bleeding was severe. So they put me to one birth control pills. I was fine then. Becoz of severe blood loss, i had blood transfusion also. Within 3 months time, i got pregnant with my second baby & but was diagonsed as hypothyroid. I am taking synthroid 25mcg ever since from 2005.
Last year in 2007, i met one good homepathy doctor in India, and she adviced me to take this for one month & stop it. C.P 200 3 pills to be taken on alternate days & PUL 3 pills on the ext alternate days for one month. My periods were quite regular for 2 months & again showing problem. My thyroid is normal as per last month blood work. This month i had brown discharge alone for 2 days. I have severe headache, mood swings on my menses days. I have bloating also. I remain calm on these days. Please help us to have a good remedy & have a good health.

My first kid is my daughter who is now 3& half yrs old & my son is 21 months. My daughter is fine, but my son has extremely thin limbs & hands. He looks very petite also. Though myself & husband are very short & petite too, we wonder why our son is looking so thin. Doctors are running various tests to find out if he is having cystic fibroids or any other hormonal problem. They took X-rays to check his bone density also. Everything came out to be ok. My son is extremely beyond underweight(15 pounds) & height(28').
As per our homepath doctor in India, she send us Cina pills to be taken for my son, he took it, but still no improvement. He took A.C pills also for weight gain & all, nothing seem to be good.

Please solve our son's health too.