Your discs and spine are setup like a
necklace. The beads of your
necklace are your discs, L-stuff. The string that passes inside the beads is your spinal cord, S-stuff. So, when the beads began to move outwards, they press against the string, which pinches it. When this happens with your discs, depending location, lower L, middle T, and upper C, you will experience the simples that you mentioned.
I have/had C and L issues.