I have the exact same thing happening to me. I have low, but normal range blood pressure too. I am healthy, work out, 34yr female. I don't know what these jolts are, but they are exactly as you described.
Just curious here, did you ever get a diagnosis for your issue? It does sound like some anxiety issue to me, but my main thought is that you need to have a CT or MRI done of your brain!
Just to let you know that I have the same thing as you and none of the doctors I have been to have have any idea what it could be.
These are my symptoms. Like you I do not feel like I am under any above normal stress and my health is otherwise very good.
• A pulse/jolt from time to time. Affects hand/foot/arm.
• A jolt that seems to affect all body
• After above, sometimes feel sickly, dizzy, lack of concentration.
• After some episodes my heart is racing, plus feel sickly, dizzy, lack of concentration.
Struggle to read without feel like it will happen again.
Recently became afflicted with random sudden surges of light headedness, slight disorientation and, yes, sickly but not greatly so. Can strike sitting up or lying down. Often happens mid-day or an hour or so after falling asleep at night. Had a mild concussion two months ago and suspect might be a factor. Have had long term digestive problems, especially upper abdominal gas with heart palpitations. With these jolts, surges, seem related to my stomach, possibly adrenalin? Can also get sudden, brief heart flutter
along with it. Have quit alcohol, caffeine and gone to bland diet. Have a couple of good days, no problems, and then symptoms back. Throughout all this, have had a fairly consistent light dizziness, not vertigo, but rather unsteadiness. All this for about three weeks. Been to family doctor first and then two trips to emergency. All vitals fine. Hoping it is some weird virus, but anxious. My doctor arranged for 24 hour haltar heart monitor and had me do Metanethrine urine test. No results yet. Empathize with you all, having an affliction not exactly mainstream. Welcome any comments.
I tried to just post I don't know if it did but it's usually found in people with depression mostly found in patients with PTSD where your brain shoots random Spurs of dopamine in feelings of relaxation or happiness it's neurological but it's not bad it's pretty normal and the standing up fast can cause you to be dizzy that's just in everybody you might not be eating healthy atm