Wow.You are so lucky.I envy you! Seriously.I have been fighting weight gain for years now and have fought tooth and nail to keep weight off much less lose any weight.I'm too embarassed to say how much weight I have gained but last week I decided to go and get a thyroid test.
I was hoping and praying when they called yesterday that my test was off in some way.But nope.They said the tests came back normal.
I was in shock and very dismayed about the whole thing.
So that's why I think your lucky.
No, I understand what you are saying....but NOONE is "lucky" to have thyroid issues. It's a lifetime thing that needs to be constantly medicated. And if your levels are off - the rest of your body is screwed-up. Thyroid is the bodies ultimate hormone - can you imagine having that messed up, and the effects it would have on your body?
No offense, I understand the sentiment - but thyroid issues are no walk in the park if you KWIM.
To the OP - yes, thyroid problems can be the cause of pregnancy issues - so good luck to you now that you have the meds you need

. Once you conceive, you'll need to get your levels checked once a month but it can usually be done right at your OBGYN. I had the pregnancy induced kind, but didn't find out until months after my son was born - I often wonder if that was the cause of his autism because it went unknowingly untreated during pregnancy - meh, normal to look for a blame, but it's one of my thoughts.
BTW, I conceived DD just fine after dx with no complications during pregnancy at all.
Good luck!
Oh, some of the side effects can be heart palpitations, trouble sleeping, I get shaky if I don't eat something an hour after taking my synthroid stuff like that for me. Also, the dosage you're on right now may not be the dosage you end up on - they should be rechecking your levels withing a few months to see if they have you on the right dosage.
Also look for diet changes to help you - less sugars, more complex carbs. And watch what you eat within 3-4 hrs before or after taking the meds. Things like broccoli and different foods can affect the meds - but my endocrinologist said that as long as they aren't eaten within a few hrs you're ok.