Try Magnesium (i prefer the combo of Magnesium & Potassium Plus
Bromelain) { You can find in most health food stores }
Magnesium plays vital roles in muscle, nerve and immune function
Potassium is an electrolytic mineral, or a mineral that helps conduct electricity through the body Bromelain
Pineapples, which traditional healers in Central and South America have been using for centuries to treat indigestion and inflammation, contain protein-digesting, or proteolytic, enzymes...
I am a 27 year old female, when I was about 19 I started having all sorts of crazy symptoms my legs would tingle and burn and also at times they would give out in a way.. I also had sore thighs and arms. I would get a low grade fever and my face would get really red and really hot. I was tested until I was 23 and they never found anything, they kept telling me I was healthy (other then my Kidney Disease) well finally I went to a doctor who tested me physically not by a lab (bc they dont make a lab test for it) I was told I had Fibromyalgia... It was such a relief to have a name for it, they started me on Lyrica I take it before I go to bed and it last until the next night. I rarely have any of these symptoms anymore so talk to your doctor about Fibromyalgia and see what they say.. Hope this helps
might want to ask your doctor for a lumbar puncture it can tell you more than any test of what may be going on
you might have pinched a nerve in your lower back and the more you move the more it gets irrated it could have been the way you moved to pick up your backpack or how you sat in your seat even if you twisted around to see something i did the same thing giving my son a bath it made my legs tingel as if they had fallen asleep then i blacked out when i woke up my husband had to pop my back and after that i was fine i would have them check out your nervous system good luck hun