编辑同志:我今年40岁,是一名工人。十多年来,我每天都骑自行车去县里上班(每天骑车20公里左右),周末则帮家人干农活。两个月前,我开始出现早晨醒来时小腿沉重不适、手指肚发胀,晚上小腿肚左上侧有疼痛感的症状。这些症状在白天可自行消失。我曾去医院做过腰椎CT等多项检查,但结果均无明显异常。请问,我患的是什么病?长沙刘军 Editor’s Comrade: I am 40 years old and am a worker. For more than a decade, I ride a bicycle to work in the county every day (about 20 kilometers a day), and help my family work on weekends. Two months ago, I began to feel heavy and uncomfortable when I woke up in the morning. I had swollen my fingers and had pain in my left upper calf at night. These symptoms disappear by themselves during the day. I went to the hospital to do a lot of lumbar CT examination, but the results were no significant abnormalities. Excuse me, what is my illness? Changsha Liu Jun