I'm currently taking NDT and was getting on quite well until I reached 3 grains and whether that was just coincidental I'm not sure but I started to experience quite severe fluttering or Arrhythmia , it took my breath away some evenings which was when it was at its worst . I also take an adrenal supplement as I thought that it could be that that was causing it . I've dropped the dose now and the fluttering is only slight and again mainly in the evenings and when I initially lie down in bed . The big problem is now , that dropping the dose has given me hypo symptoms again , lethargy , just general weakness etc etc . I'm convinced I need a higher dose , but can't really increase . Any suggestions would be appreciated .