Hi Julie
You are going through a tough time. There is a lot to think about. None of this is straight forward or easy.
One definition of POTS is heart rate going from lying to standing , should be 28 beats or more.
My heart rate is 60 lying down for a while. Then can go up to 100 to 120 first thing in the morning. My symptoms are always worse in the morning because blood volume levels seem to drop overnight. Once I have water and salt things gradually improve.
I get symptoms when my heart rate is greater than my aerobic threshold. For me that's about 108 now. It was around 102 when I started getting heart rate symptoms. The drug ivabradine slows the heart very slightly without dropping blood pressure. So it will reduce it to 90 to 100 which is then below my aerobic threshold and it helps me stand up without feeling so ill, and I have been able to build my fitness a bit so the aerobic threshold has gone up a bit, which is good.
One other thing to think about is something called pulse pressure. You will need a blood pressure machine.
Take your blood pressure when you are symptomatic or perhaps when you get up. Make sure you are standing up with your arm supported on a counter top.
You will get systolic and diastolic pressure. E.g. 100 over 60.
100 is the lowest end of normal. Yours might be slightly under that as mine is, and that might indicate low blood volume.
Then take the diastolic pressure away from the systolic pressure.
So 100 take away 60 =40.
40 is the pulse pressure.
I find that if my pulse pressure is 30 to 40 I feel reasonable standing up.
If it is Around 25 I have some symptoms.
If it is below 20 I am very symptomatic and might be sweating for instance and feeling very rough.
Knowing the pulse pressure when you have symptoms might give you a clue as to what is happening.
If I have low pulse pressure, I know I need to lie down and take salt and water on board.
Are you aware that you need to drink a reasonable amount of water quite quickly to boost blood volume. No sipping. You need to give the body more than it needs at one go so the extra goes into the blood stream. Rather than sipping water constantly which can reduce electrolytes during the day, you might be better downing a large glass or two or two at one go and then leaving it a couple of hours.
Also to balance the salt I try to eat some lo salt which is basically potassium , to balance out the sodium a bit. You need both sodium and potassium to feel ok. If you are taking on board extra sodium, then you will need to think about potassium intake as well.
I have improved in my functionality over the past 4 or 5 years with pots, and especially when I got onto ivabradine. Before that I tried herbal drugs which did help somewhat. I am hoping to come off ivabradine soon as my symptoms are somewhat decreasing. There is hope.
I apologise for the long post. I hope something here helps.
Greta advice, thank you.
Would you say it sounds like PoTS that I'm coping with?
Daily I've the awful fatigue, heavy body, some days legs are so weak I can't walk around, low blood pressure on standing, fast heart on standing and walking around which seems to hit worse on my fatigue days and sometimes on those crash days with fatigue I feel so faint and weak in my thighs I can't even go downstairs all day. Does that sound like pots? Those crashes are so scary. Over exertion or emotional upset seems to trigger my crashes. I find he crashes scary and they then trigger my anxiety.
I had low sodium and low potsssium on my bloods in November. Only slightly under but I've panicked since and been drinking less as I was scared incase I powered them further. The sodium came up from 129 to 138 and gp was happy. Potsssium was only 3.4 so he wasn't worried 0.1 under. On the day of the text I felt so anxious as I've anxiety and phobia of blood tests hat I drank 7 cups of camomile to calm my nerves and was weeing loads lol! My gp said that would be why my electrolytes dropped so much on the day of the test. Herbal tea plus losing a lot of urine. I've had sodium tested recently and it was 134, range 135-145. Gp told me to increase salt intake as I don't add it to food. I've been adding it to food using pink Himalayan salt and I've increased potsssium rich foods. Bananas, dates, avocado... anything else I should do? Can I drink the pink salt? Is that safe?
On standing my bp dips a lot to about 88/58. Sat down it's about 100/65. I've always got low bp since being unwell with fatigue. Sat down pulse is 65, in first minute of standing it's about 106. At 3 minutes it's around 90 and stays at about that level at 5 and 7 minutes. By 7 minutes i feel all funny in my feet like they feel cold and full and I have to sit down, I don't feel right at all.
I can't seem to stand long periods this last 18 months, often feel woozy walking and need to sit but standing still talking to hubby in the kitchen I get a blood draining to my feet feeling? And have to match on the spot or sit as start to feel I'm sinking through the floor. It's horrible.
Thank you for such a helpful reply.
Julie