Hi there. Sorry you are having such bad symptoms they can be scary. I also have had every symptom know to man from being hyper and hypo. But , I really just wanted to let you know that I have also ran out of my meds and let the pharmacist know that you dont have any at all and usually they will from thyroid meds a few pills until you can get it. Most understand that it is a pill we cant afford to miss and will accomodate you. Best of luck and feel better.
So you missed 4 days of meds? Technically you shouldnt notice skipping a T4 med that soon, but some here claim too.
Heart palps and dizzness can be hypo symptoms or in your case, symptoms of thyroid hormone fluctuations.
This will most likely temporary and will pass as your levels resume, if that is the cause. Dont 'double up' on meds, just resume your normal dose. Dont get too worked up over it - wont do you any good. :- )