I went down the rabbit hole......Tilted my seat up a bit, Rode 17 miles this morning after reading almost every thread and link from here. Hands extremely numb. Got back lowered my handle bars, and rotated them back to level. went out and rode 5 more miles. Back was flattened out I could feel the stretch, no numbness in the hands, but all of a sudden terrible numbing in my right foot! S%$t!!!!!!!!!!