I have been of my meds for nearly 18 months, so I guess I'm in remission. My problem is that if I get any symptoms like palpitations, jittery feeling, I automatically think it's my overactive thyroid (graves) come back again. My last blood test was 3 months ago which came back normal, I've noticed that I get these symptoms just before I am due for my period. My question is can one be in remission for the rest of their life or not?