I'm a 52 year old man usually in excellent health. Had a full physical 5 months ago, with blood work-up and everything checked out.
For the past month or so I have been going through enormous stress, both personal and career, but things have recently all resolved well. But a few weeks ago, I noticed that I was having a weird allergic-type reaction. When taking a walk in the cool morning air, I was getting red and intensely itchy spots on my hands suddenly that would lasted for about 15 minutes. Then, one very stressful day, I was walking in the cold morning air and suddenly my right hand swelled up to a point where I could not close a fist. It lasted for less than a half hour but scared me.
About a week later I came down with what I felt was some sort of stomach flu; I had a low fever, lost appetite for about 2-3 days, lost about 5 pounds and just felt weak and unusual. My appetite slowly returned but then I noticed I was getting these weird dull pains behind my left knee and thighs, and these dull pains have moved into my calves. When I wake up in the AM, the legs feel fine. I am going to work and continuing my normal exercise regimen, but about midday every day the dull pains in my calves return and they last till I go to sleep; I sometimes feel a slight burn behind my left knee. When I walk and move my legs feel fine, but resting and sitting brings them back. I am also feeling occasional nausea and lightheadedness; I know I am concerned about the leg pain and I may be adding anxiety to the problem, but, since I am dealing with the calf pains every day now for over a month it's concerning me. I know it's a weird group of symptoms but does anyone have any clue what it could be? I just had another full blood workup yesterday but while waiting for results I'm driving myself nuts. Help!