Hi Predictable,

You know I think you may be onto something, my BUN ( Blood Urea Nitrogen ) Creatinine in my blood tests came back pretty high, well above the normal range, that's the only thing that was abnormal. The research I did said that this could be a kidney issue and I have been having some discomfort in my kidney area for some time now, I'm going to see my Urologist again on Friday. The first time I went to the Urologist was because I had very very small kidney stones lodged in my kidneys that wouldn't pass and the STILL haven't passed since I saw her in June of this year. I'm going to mention to her about the possible correlation between my kidneys and my palps and see what she says, the only thing is when they did my last electrolyte tests my potassium levels were normal, but keep in mind that I take a potassium supplement ( 99mg ) every day.

@mikeyp, I'm not surprised about your potassium deficiency. It often is linked with magnesium. Electrolyte deficiencies and imbalances can raise heck with operation of your heart. I'd suggest you ask your urologist what she thinks about bringing a nephrologist onto your team to focus on these possibilities. And I'd take a close look at potassium levels to see whether they're too high and you're dealing with hyperkalemia.

Or see a GOOD Hematologist to get a full blood work up. Iron, magnesium, potassium etc is out of balance it can cause heart problems

You know you really have me thinking that because my kidney stones were so small ( I had 6 in my left and 5 in my right kidneys ) and the Urologist wanted them to pass on their own ( and they didn't ) back in June that now I may have even more stones and they are really irritating my kidneys to the point to where they're not functioning correctly. Every day I have " discomfort " in my kidneys and I told my cardiologist AND primary care Dr. and both of them dismissed it as any crucial, great Dr.'s huh ? Yes I will definitely ask that a Nephrologist is brought on board. I really want to thank you, I looked up hyperkalemia and now all of these pieces of the puzzle are starting to come together.

Thanks a lot Predictable

I get that done by a Hematologist every 3 months because I'm in remission of Leukemia but believe it or not when they do the electrolyte test on your blood they don't check for Magnesium, so the last time I was there ( Oct. 2016 ) I asked that the next one check my Magnesium levels and so she wrote that in to test for that too. But what I'm wondering is since I'm taking Magnesium now for all this time will the levels show as normal on the next test ?

It may depend on what's going on in your body. I have Prinzmetal Angina. The more spasms I have the more iron, magnesium and potassium is used. I (like other Prinzmetal patients) have unexplained low iron anemia- my body doesn't absorb iron so I have iron IV'S when it gets low

Lisa from what all the tests and Dr.'s are telling me, I'm fine, all tests are normal except that my BUN is somewhat high, that means kidney issues which I do have kidney stones in both kidney's. From what I'm researching if the kidneys are not functioning properly ( ie the stones ) they can cause the kidneys to not excrete potassium and magnesium properly therefore disrupting the heart rhythms, I'm really starting to think there's a connection with my kidney issues and my heart palps thanks to Predictable, he's a member on here also.

Hi, I read all the posts, I just don't post unless I have a new issue. I have AFib and a leaky left valve. I've been on Metoprolol 25 + Xarelto . The second opinion Dr changed me to Diltiaz ER 120 just 3 days ago. He thinks that the Metoprolol was causing my extreme fatigue. The Diltiaz does not control my heart rate or my blood pressure. I didn't have high blood pressure to start with. But yesterday it was at 148/102. Had a hard time sleeping because my heart is trying to pound out of my chest. I can feel it in my head too. So, I'm thinking go back to the metoprolo and talk to Dr. tomorrow. Anyone else had experience with the Calcium blocker, Diltiaz?
Thanks in advance for help. Jan

Might be helpful to repost this as your own discussion instead of a part of this one. Do you just take metoprolol 25 mg once per day? If so, that is a pretty small dose and would be surprised that it causes extreme fatigue. I take the metoprolol succinate ER 25 mg once daily. Recently saw my cardiologist and she was asking if I had any side effects and then commented that it was just a "tiny" dose.

Hi Grandmajan, I agree with Jigglejaws. You might want to post your message about afib in the discussion called "Afib questions" http://mayocl.in/29iD8aJ. You've posted there before. Or you could start a new discussion about calcium blockers. I don't want your question to get lost in this discussion about heart palpitations. I know the website can be confusing sometimes. Just let me know if I can help.