sudden hair loss

I am a 30 year old female, 3 children under 8, and I started lossing my hair suddenly about a year ago. My first wierd symptom is that  I woke up one morning with puffy circles under my eyes which really freaked me out. Then about a month later my hair started noticibly falling out. I've tried everything! I do know that I have thyroiditis now but I've been on the thryroid hormone for about 8 months now. Why is my hair still falling out? I've lost 3/4 of my hair. I have to wear hair pieces. My hair when group together is the size of a pencil round. I don't know what to do. I feel like I might go bald. It won't stop falling out. I do have a twin brother and he has really thin hair but he is a heavy drinker so I contributed it to that. My hair loss was so sudden and in excess. Does not seem at all normal even if hereditary. Help!!!

[Jibs1]

Hi... you can discuss with your Dr.  Did this suddenly happen after the birth of one of your children?

Sometimes thyroid conditions after birth can be hypothyroid.  Just some thoughts.

[mirobaloch]

it could be due to thyrioditis, hypothyriodism or a condition called alopecia areata whic is sometimes associated with thyrioditis.
check your thyroid profile if it is in normal range.it should be controlled fairly.
in alopecia areata intralesional steroids can help a lot.
also anthralin ointment can help in alopecia areata.
sometimes minoxidil lotion will help but you should consult a drematologis before going for all this.