what happens if you stop synthroid
Hypothyroidism in general can cause mood swings, so it is possible this is the cause. In any case, something bad is bound to happen to her if she is not taking her meds. You may want to look at the post 7 above yours, from Summerwind63. She experienced a myxedema coma after stopping her thyroid medicine. Without a thyroid and any supplemental hormone replacement (Synthroid, for example), one can die.