cider vinegar and honey and hypothyroid

Hi all,
I have had an underactive thyroid for over 7 yrs now, for the last 5 yrs I have been holding steady on the same dose of eltroxin. I started taking 'Honegar'(cider vinegar and honey) 3 weeks ago and am now having palpitations since Monday. The doc seems to think that I need to cut my meds down now..........is it possible that the 'honegar' is having a positive effect on my thyroid function ???? I am also a T1 diabetic since Oct 2006 but don't think this has anything to do with it. Anyone ever heard of this happening before ? I'm so curious.
Thanks
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