I am 26 years old. I woke up this morning and my left shin bone was numb and painless it has been numb all day. Before i went to bed i had been on the computer for long hours doing NCLEX review questions. I have a history of mild lower back pain(tightness) and also i have neck tightness as well from a C5 minor buldge which has been doing ok. But latly with all this studying and bad posture my neck has been increasingly getting stiffer. I had just notice a few minutes ago while sitting in a chair that pressure was being put on the inside of my left knee/lower hamstring area and the numbness started to increase with a tingling sensation. Not sure on what to do to make it better.