Postpartum hypo and my baby :((( please

Ok so I have a seven month old son and after monthes of being tired and depressed i finally got tested for hypothyroidism. Well it came back positive.( secondary normal tsh, low t4)  I am so scared that I have had this since I was Pregnant and was just undiagnosed. I remember having a very low cold tolerance, my bottom or feet feeling cold long after exposure. Tiredness, paleness, extreme weight gain when I am normally a very petite girl, and horrible morning sickness( I know these could all be normal though too?)
    I had a cascading thyroid reflex at 7 monthes with a tsh of 0.8.. I am basically wondering if a secondary hypothyroidism could have had the same devistating effects on congnitive development as primary? Would it be obvious even at this young age if he did? thankyou for your response!

[miki31]

I had the same problem and found out as well that I have a low thyroid function about the same level 0.007. My son is now 9 month old and I will have him tested in the 2nd week of March. You should have him tested too. I thought the O.B. should have tested it without asking and I am disappointed they didn't. My House Doctor tested me without me even asking. Either way I am anxious to see if he is ok. I am a bit worried so let's see. I would recommend you to do the same just to give yourself a peace of mind.

[kevieb]

I think that most of a baby's cognitive development during gestation happens before 7 months.