I have been having this constant pressure on the left side of my neck and shoulder for a couple of months now. Along with this my left side of my left calf and shin constantly twitch and feel cold or numb. Now just in the past couple of days I have head pressure and feel it behind the ears which is throwing off my balance a little and makes make vision a little off. It is really worrying me someone please help. I am a 30 year old male and have high blood pressure (140/85), blood glucose was 90, cholesterol was 194, and only weigh 168 pounds. Can't figure anything out and hospital was no help. I don't want to die of a stroke or heart attack at 30 years old! Could it be stress, back problem, ......???