Why doesn't your doctor just prescribe a lower dose?
Why were you told not to take your Synthroid on Sunday?
It's not good to miss 3 days of your medication, but since you have, you should start taking it as directed and do your best not to forget in the future.
i missed 3 days of my synthroid medication im on the lowest dose and told not to take it on sundays will this hurt me?
Yes, it can stop them. My dr took me completely off of mine last year to run some tests and it stopped. Now I don't have a thyroid, so I take .125mcgs, but I think in part it is what your body is use to and when you stop them and set it back like that it affects everything. Be careful about going off of them when you need them, b/c it has terrible other affects on your body such as raising cholesterol at an alarming rate when you are hypo. It also decreases bone density b/c it depletes calcium stores, so also affects your teeth.
Try to make sure you always take it, your body must really need it if it was affected enough to stop your periods. Don't beat yourself up over it, just learn from it. ;)
Dac
I don't know about the missed period, but you just put yourself back to square one! One to three days may not do harm, but I wouldn't make it a habit either, that is, if you take your illness serious. Two/three weeks sets you back.
Shame on you!