Is this thyroid related

My symptoms are dizziness as if I am buzzing, my chest and upper body feel like they are vibrating. I go from boiling hot in the face with freezing cold hands to hot all over. My skin is really dry and flaky, my nails are brittle and grooved.  My heart races and I am being checked for AF but the A&E Doctor said it could be thyroid, this has been said before but when tested the test is either borderline or normal. I also struggle to lose weight and my lower legs are a bit puffy by the ankle. My thyroid area feel slightly swollen, but it is buzzing and dizziness that is scary, I also have lots of headaches.  Any thoughts please.

How old are you? Male or Female?

So you're having episodes of palpitations and lightheadedness?

How long do they last for? How long have you been having these episodes?

Do you have varicose veins?

Do you have any long term medical conditions?

Do you smoke? Have high BP or High Cholesterol?

I know exactly what you're going through. I am experiencing the same things due to being just diagnosed with Hashimoto's. Have you had your TPO antibodies checked? That's how my doctor knew I had Hashimoto's because I had elevated TPO antibodies.

I described fuzzy tingling feel

Hi, its that feeling I hate, you feel all wobbly all of the time, especially if walking for long periods.  I will get to the bottom of this as I am fed up with being fobbed off.  

Hi, I will ask for TPO and thyroid to be checked and see what happens.  Take care