Hi Bead, so sorry that you are feeling this way again, believe me i know how you feel!!  I am still like that now and am supposed to be going for benign positional vertigo tests in just over a week and i really don't think that i can go and do it.  I will be bad afterwards and i don't want that, i am bad enough now thankyou.  I have weighed up the pro's and con's and what would i get out of it, if it is there is no cure anyway.
I know that when i took the SSRI Seroxat i was ill and i felt like i feel now when i was on them, but now i take nothing and there is no improvement anyway so can't see it being that really.  
I am just trying to do my best right now to 'believe' that mine is just down to anxiety and nothing more.  I am hoping that acceptance will help me to improve.  It is so very hard to believe that anxiety can do this to you and cause all of this and accept that it is like your brain is attacking it's own body and system really in a way.  I don't think i will get anywhere until i accept that this is a mental problem for me and not a physical one, but i am trying every single moment to help myself in this way.
You have been doing so very well lately Bead, you are an inspiration to me as i know when we have spoke on here before that we have shared quite a few symptoms between us.  I could never do what you have been achieving just recently, i just manage to plod along, sorry but best i can do right now.  I am wondering if somewhere deep inside our brain knows that we 'know' really what is doing this and this is why sometimes we get a good day.  I can honestly say that since i became ill, three years ago, i had never had a good day until last week.  It only lasted for the day, so the next day felt much worse of course, but i have to learn to focus on the positive's too and look at it like i have had one good day and i will have more.  A bad day is just a blip and it will get better, this is very hard to me to believe for myself, but i still try.
Dizziness is such a bizarre and crippling thing isn't it?  Somedays i can hardly stand and i have still managed to go to work, doing less hours now though for a while, every moment i have thought that i would collapse and die, but i didn't, i am still here.  I think the problem, for me, is that dizziness still scares the hell out of me and if i could just accept that it is ok and won't hurt me then i would be on the mend with that one.
I really hope that you are feeling better now and that the dizziness has passed off a bit, and the palpatations.  Had a bad day with them myself today, perhaps it's the weather at the moment, my heart rate all morning was 120 and i was all shaky like jelly, not nice at all.
Let us know how you are doing Bead, hope it improves for you soon hun.xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Sorry to hear you are having a bad time - it is so frustrating when you feel you are doing well and then feel back to square one.

I often get postural hypertension - which simply means that if I sit up, stand up or even just turn over too quickly, I feel dizzy. If this happens, it then seems to take several days before I feel back to normal - in those days I seem especially prone to very short spells of dizziness, sometimes just a second or two. Could your dizziness be related to something similar?

I haven't been posting much of late - we are busy sorting out our house with a view to putting it on the market and we have had internet problems (Virgin used to be great, but off quite a lot recently). I too am plodding along, no missed beats then a week of them, then okay again. Maybe that is just to be my pattern, but I am managing to live with it at the moment.

Okay, well let's not go too far out on a limb to suggest that I'm a heart expert. Neurology sufficiently strains my capacity without any considerations regarding cardiology.

To your question, I would ask whether you wish to share the name of the SSRI you are taking. Some of the newer forms of this medication actually affect norepinephrine as well as serotonin and the effects in some cases can be quite dramatic, both from a positive and unpleasant perspective. Psychotropics are a difficult class of medications because the range of side-effects by those taking them can vary greatly, sometimes with a degree of unpredictability in less common cases.

If you find that your symptoms have coincided with the administration of the SSRI, then speak to your doctor about whether you're suffering from side-effects and whether dose-related changes are a consideration or the use of an alternative medication is warranted.

Dizziness is often characterized differently by patients and it's one of the more difficult symptoms to accurately pin down. If you feel light-headed and just a little off balance from normal, then dizziness is essentially not the right term. If you sense either the room spinning or yourself spinning and you develop the sudden inability to stand upright or oriented as a consequence, then the vestibular system is likely being disturbed and feeling faint or weak is usually not associated with this kind of sensory disturbance. There are many causes and too many to list here, but  in general I would say that medications are high on the list, with syndromes like Benign Positional Vertigo being responsible for a vast majority of cases as well.

If it continues, then it's always wise to discuss it with your primary care physician to determine whether evaluation is necessary. As for the palpitations and anxiety, you certainly know that you can have good periods mixed with bad and cause for these changes in intensity can be hard to define.

Best regards and Good Health