hey, i am hypo too and i was told i would never have kids because a combination of psos endo and only one ovary , however i have two ! as long as you keep ya bloods stable you should be fine x x
Are you see an endocrinologist or a regular PCP? If PCP, get yourself into an endocrinologist who specializes in thyriod issues....dicsuss the meds and side affects..they may see how you do after 1yr on meds because 'sometimes" thyroid issues can work themselves out, or they may consider the radioactive iodine treatment to burn it out...better to wait at least 1yr to see if you stablize....
BTW - 40 isnt that bad....stay on the meds, make sure not to skip and in about 2-4 weeks your numbers will begin to come down...
This should not effect you from having children. I would guess that you are taking medication for these problems. If so they will keep you regulated.