I've been terrified of my heart rate for weeks. It's been 95 at rest for ages.

Then I started Citalopram and dropped my multivitamin.

Almost overnight, I noted my heart rate dropped to 70 at rest. Now it's resting around 58.

I'm concerned. It seems to be getting slow. I have severe dizziness 100% of the time lately, a lot worse than my usual.

The last ECG I had showed no irregularities at all, but I had a high heart rate resting because of the anxiety.

I'm still just as anxious, I'm just concerned more now about the dizziness and the suddenly dropping heart rate, not the fast heart rate!

Why would my heart change so significantly over a week?

I asked him about it and he said that it was most likely not due to the citalopram, and that I'm 'fine'.

I'm confused by my hearts little fiasco over the last few weeks, although I'm honestly doing rather well physically, I can exercise hard and my heart rate is very stable with occasional bursts of premature contraction palpitations during wake (and sometimes when drifting to sleep).

Sometimes I just feel strain and pressure in my chest when I'm anxious, and sometimes I get concerned by the sometimes fast sometimes slow heart rate. Then again, I feel it almost 500 times a day now..