Low Carb while hypo/hyper

Hi All,
Here's my situation - I was diagnosed with hypothyroid w/ a TSH of 47.  It was under control for four months or so, gradually getting back to 0, but my last blood test showed I am slightly hyper.  My doc reduced my meds very slightly and I have to get another blood test in a few weeks.   So, like many hypos, I gained tons of weight in the past year and a half,  and I'm trying to take it off.  I lost about 10 pounds with exercise and low cal diet, but I can't seem to  lose more despite the fact I was running 4 times a week and eating well.  My weight is way above normal still, so I decided to try low carb.   I heard this is  good  for  hypothyroid people, and so far I've lost 4 pounds in a week.  I really want to continue, but I've been feeling very weak and having some palpitations.  Do you think this is just the meds?  Or the diet is making the problem worse?  Has anyone tried low carb while  hypo/hyper?  
Thanks!

[HyperT77]

Hi --

I always revert back to a low carb diet when trying to lose weight (being Hyper and Hypo) at one time or another.  It is the only way I've been able to successfully lose weight.  The first week or so I do tend to have palpitations.  However, palpitations can also be cause by the thyroid fluctuations.  Make sure you discuss those with your doctor.