It is not b/p as I usually run on low side it actually goes up alitltle ..It is not anxiety as I am fine then all of a sudden the symptoms start. I have mentioned to the tech/nurses (and they are there every time it happens and they said they dont know what is causing it) I called my neph dr on Wed and asked what can be done he called while I was at dialysis so I have to wait now until mon to call him back..